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Parent info: Tumble Science Podcast for Kids is recommended for ages 6-10 and 11 plus. It's an Episodic show that can be listened to in any order. Made in the USA, it's about Education and Facts for kids. Launched in 2015, it has 11 seasons.
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![How Do Stem Cells Decide What to Become? ... and Other Questions [MAILBAG]](https://imgs.soundcarrot.com/podcasts/tumble/tumble-thumb-4d10dce745.webp)
In this special summer mailbag episode, Marshall and Lindsay help answer three kid questions:
How do cheetahs get their super speed? We talk to a cheetah scientist to find out why a spotted cat is the fastest animal on Earth. Cheetahs are literally built for speed! Anne Hilborn spent months scoping out cheetahs on the hunt in the grasslands of the Sere…
This is a rebroadcast of one of our favorite episodes from last season, and one that is particularly timely for the summer!
What would happen if the Moon disappeared? How big is the universe, really? And what happens to atoms inside a black hole? Marshall and Lindsay get the answers to some cosmic questions in this special mailbag episode!
This is a rebroadcast of one of our favorite episodes from season 10!
You asked, we answered! In this mailbag episode, we're tackling three big kid questions: why does the ground keep spinning after you stop? Do magnets work in space? And could a peacock and a platypus ever be BFFs? We get answers from real experts, as well as r…
This is a rebroadcast of one of our favorite episodes from the past!
Both ants and bees work hard. So which one works harder? That’s what our listener Hadi wants to know! So we’re pitting insect against insect in a battle of industriousness. Ants or bees: Who will win?! Tune in as we attempt to crown the Hardest Working Insect!
A special “tickle attack” Mailbag edition of Tumble! We’re tackling your questions about whether animals can be tickled, and why we laugh when we’re tickled. David Leavens, a professor of psychology, helps us break down the not-so-silly science of tickling. Pl…
Do trees think? That’s what our listener Alden wants to know. He has an idea that scientists might study mushroom roots to find out if trees are sending messages. Is that true? And if so, what do trees have to say?!We travel deep into the forest with a young s…
What is dark matter? Why do scientists think it exists? How are they searching for it, and why are they doing it in an underground lab?! Join us on the search for dark matter with Alvaro Chavarria, a physicist running a dark matter detector underneath a mounta…
Who invented the peanut butter and jelly sandwich? And how did it become one of the most famous lunches in America?
Why do humans usually have five fingers on each hand? And what if one day, we could grow a new finger if we lost one?
In this episode, we talk to two scientists who study animal friendships, in different animals, and in different ways. We’ll hear from Karen Bales, who studies titi monkeys (AKA “fuzzy little guys”) and Annaliese Beery, who studies voles (AKA “the cutest rodent…
How did Earth get created? What did our planet begin as? Why does our world exist? What started our planet? These questions take us back billions of years to learn how Earth formed in the very beginning - and then, we’ll look to a group of mysterious asteroids…
This is a rebroadcast of one of our favorite episodes from season 9!
This is a re-broadcast of a favorite episode from 2019. We actually won our first AAAS Kavli Award for this episode, along with The Cave of the Underground Astronauts. Check it out!
We’re wrapping up 2025 with a final Mailbag episode, featuring some of our longest-running Patrons! Did you know, when you sign up to support Tumble on Patreon, you’ll get a personalized message from Marshall? And if you’ve been supporting us for years, we mig…
How do people learn — and how can a video game help us find out? In this episode, we meet cognitive scientist Charley Wu, who built the ultimate science “mod” in Minecraft! Journey into a video game world of science to discover how and why Charley used one of …
Why do we have snot? Do animals get stuffy noses, too? We delve into the world of thick secretions with the help of Dani Rabiaotti, zoologist and author of “Believe it or Snot: The Definitive Field Guide to Earth’s Slimy Creatures.” You’ll find out why we make…
What sounds do fish make? 🐟🎶 We know that cows say moo, and sheep say baa, but what do fish say? Come explore “Under the Sea” to discover the chorus of fish noises with help from fish ecologist Audrey Looby. We’ll find out how fish can be sneaky, loud, and …
Are ghosts real… or not? That’s what Lily wants to know. To find out, we talk to a real-life Ghostbuster and science historian Efram Sera-Shriar, who takes us on a journey back in time to when the world’s most famous scientists became ghost investigators: Sitt…
Did dinosaurs sniff each other’s butts like dogs? That’s what listener Ernie wants to know! We’ll dig up the surprising dino discovery that leads to our answer with the help of one of the world’s foremost animal butt experts, Dr. Diane Kelly!
This is our final Mailbag episode before all-new stories of science discovery arrive on Friday, October 17. Lindsay and Marshall share behind-the-scenes updates on what’s coming up in Season 11 — plus a special challenge to guess the topics of our first three …
We have a big announcement: Tumble en Español is returning on September 25th!
There’s so much happening in the world of Tumble, and we’re excited to share it all with you! Plus we answer questions about plants with the help of plant biologist Carina Baskett.
Is fire a liquid, a solid, or is it even matter at all? And what is the science of asking good questions? Lindsay and Marshall dig into the Tumble mailbag to answer listener questions with the help of Tumble's science advisors, and respond to reviews! Somehow,…
This is a summer rebroadcast of an episode of Tumble from a few years ago.
Do you know why four leaf clovers are so rare? Or if just one side of our brain can fall asleep? Why do fish have different colors, and how big is infinity? Lindsay & Marshall dig into the Tumble mailbag to answer listener questions with the help of Tumble’s s…
Listen to our brand new album of science songs, and play some games along with us as we celebrate the release of our album: Science Songs Vol. 1! It’s a special summer episode that will get you singing along and testing your knowledge of everything from capyba…
Would you fly to the top of a volcano that’s about to erupt at any moment? Volcanologist Helena Buurman did, and survived to tell the tale! In 2008, Helena was monitoring Mount Redoubt in Alaska, when the ground beneath the volcano began to shake. What follows…
What if you found out that there was a tiny, nearly invisible type of plastic pollution that’s found nearly everywhere… but you’d never heard of it! That’s what happened to environmental scientist Jace Tunnell several years ago, and he’s been on a great nurdle…
To support the Tumble Joke-ha-thon and win awesome prizes, go here!
🎉 We’re getting ready for our biggest live event ever — Sonic Saturday! It’s a day of science, sound, and storytelling in Brooklyn, NY on May 10, and we’re celebrating by rebroadcasting one of the episodes that inspired it all: The Science of Ocean Sounds. 🌊…
Why is the center of a raging storm so… calm? Tumble listener Lydia wants to know what’s really going on in the eye of a hurricane. To find out, we’re flying into the storm — literally — with meteorologist Shirley Murillo! Shirley is a real-life “hurricane hun…
Was there ever nothing in the universe? What is nothing? That’s what listener Aviva wants to know. We turned to particle physicist Dr. Jessica Esquivel to find out! She takes us on a mind-bending journey to ask what existed before the universe began, and how a…
Have you ever wondered what life on Earth would be like without trees? In this episode of Tumble Science Podcast for Kids, we’re exploring that big question with the help of two curious listeners, Rowan and Neesha!
What does it take to become an inventor? To find out, we spoke with an inventor named Josh Miele about one of his greatest inventions: tactile maps! Tactile maps use braille technology to help blind people explore their neighborhoods with their fingers first. …
Why do some animals play - and some don’t? That’s what Meredith wants to know. In this special collaboration with Outside/In, we investigate how and why animals - and people! - of all shapes and sizes play. Play scientists Junyi Chu and Jackson Ham help us ask…
Why do capybaras have such big teeth? Adrian had to know! To get to the bottom of this, we spoke to a biologist named Santiago Herrera Alvarez. Capybaras are Internet sensations, and Santiago can't get enough of them! Santiago's questions were even bigger than…
How does vision work? That’s what Junie wants to know. And is it possible to create vision for people who don’t see? We’ll dive into the mysteries of how we see with Lucas Nadolskis, a scientist who became blind when he was five. Lucas is studying how vision w…
Why are there so many axolotls in fishtanks, and so few in the wild? That’s what Maximiliano wants to know. You may have found axolotls in the lush caves of Minecraft, but in real life, they live in the lakes and canals of Xochimilco, near Mexico City. But the…
Happy New Year! This is a rebroadcast of “Polar Bear Adventure” from Season 8!
Happy holidays! This is a rebroadcast of our chilly Season 7 episode, The Great Seal Count.
This is a rebroadcast of one of our favorite episodes from Season 8!
This is a re-airing of our award-winning episode The Swift Quake! This episode won the AAAS Kavli Silver Medal Award for excellence in Children's Science News, as well as a Signal Award for kid's podcasts. Give it a listen!
What does it feel like to be in space? That’s what Elijah wants to know. So we’re taking off on a zero-gravity flight to find out! Guest reporter Jason Strother shares the story of Sheri Wells-Jensen, a blind scientist who is paving the way for people with dis…
Are cats evil? Are they hatching a plot to take over the world? Or are they just misunderstood? Scientist and cat expert Mikel Maria Delgado will tell us how the domestication of cats and dogs changed the way we think of our pets today, and she’ll explain how …
How do species evolve? Find out in the shocking conclusion of our Monkeyflower mystery series! Plant biologist David Lowry has been tracking down clues to solve the question of why plants look different - and the yellow monkeyflower is more than a suspect. Now…
Why do plants grow in different places? How do they adapt to different environments? And what makes them different species? Those are the questions that drove biologist David Lowry to begin a 20 year study of a shape-shifting plant called the yellow monkeyflow…
Ever wondered how dinosaurs left their footprints behind millions of years ago? We embark on a prehistoric adventure with renowned paleontologist Paul Olsen! Discover the secrets behind dinosaur tracks and how these ancient prints can tell us incredible storie…
What do you call a scientist who studies poop? A poopologist! We’re exploring the stinky science of “poopology” at the zoo, to discover what poop can tell us about animal behavior! Poopologist Laurel Wescott, at the Oregon Zoo, will take us on a journey to fin…
“Do dogs think and feel the way we do?” We all know dogs can’t talk. That’s why scientists have to come up with creative ways of asking our canine companions what’s going on in their minds. We’ll find out why dog cognition scientist Zachary Silver put on a pla…
This is a rebroadcast of one of our favorite episodes from the past. Do bugs have elbows? That’s what Clare wants to know. Her question starts a debate between Team Bug Arms and Elbows, and Team Bug Legs and Knees! Choose a side, and come on the trail of a bug…
This is a rebroadcast of one of our favorite episodes from Season 8! This was voted on by our patrons on Patreon--if you want to help us pick our next AND FINAL REBROADCAST OF THE SUMMER--just go to patreon.com/tumblepodcast and vote. You don't have to be a su…
This is an encore episode, picked by our Patreon supporters. If you want to go vote for our next encore, just go to patreon.com/tumblepodcast to go vote! You don't have to be a patreon supporter to vote, but it does help!
Happy Halloween! We’re headed to Candy Land, a sugary laboratory where mathematicians found a mysterious candy dagger appear - over and over again. So gather up your candy box, and let’s discover out why mathematicians are studying candy to understand the real…
This is an encore of one of our favorite episodes from Season 5! If you'd like to help us choose our next episode, go to our Patreon and VOTE! You don't have to pledge to support us in order to vote, but if you do we'd appreciate it a ton!
This is a summer encore episode of one of our favorite episodes from Season 4 of Tumble!
Is it possible to build a time machine? Can we time travel someday? That’s what Tumble listener Willa wants to know. Clifford Johnson, a theoretical physicist and film consultant, says that there’s real science behind the time travel - and he’ll tell us what i…
How do scientists find out if an asteroid might hit our planet? And what do they do if it’s on a collision course with Earth? We’ll meet a planetary defender - an astronomer who uses radar telescopes to defend our planet from space rocks! Edgard Rivera Valentí…
How did cicadas evolve to go underground for so long? Why do cicadas spend so much of their lives underground? That’s what listeners Gus and Zachary want to know. This spring, up to a TRILLION cicadas will emerge across 16 states in the U.S., in an event that …
Scientists stage an alien abduction to learn how bacteria avoid antibiotics, in this fact-meets-fiction episode! Meet our alien bacteria invaders (fiction) and our real life scientist, Caroline Blassick (fact) as they face off in a battle of microbial life and…
Why can’t we see black holes? Can we see black holes with a telescope? That’s what Tumble listener James wants to know. We explore the science of supermassive black holes and gravitational waves, with the help of astronomer Maura McLaughlin. Find out how the L…
What does a spider web sound like? Join us as we weave a web of connections between science and music - and learn some truly mind-blowing facts about spiders! MIT scientist and musician Markus Buehler shares his journey into the spiderverse, turning spider sil…
On April 8, 2024, a total solar eclipse is coming to the United States! Join us for Tumble’s Eclipse Spectacular with games, music, and a thrilling audio experience to learn what it’s like to be on the path of totality. Eclipse expert Vivian White guides us an…
When human health is on the line, it’s a case for a molecular detective! Meet Mona Minkara, a scientist who studies molecular clues to solve big crimes inside the body. She’s tracking down the criminals who creep into our bodies to make us sick. Find out how M…
How do you think a stadium full of Taylor Swift fans would shake the earth? Tumble enters the Swiftiverse with Jackie Caplan-Auerbach, the scientist who discovered the “Swift Quake” - a type of earthquake created by fans at Taylor Swift concerts. Find out who …
What are the origins of human language? That’s what Elliana wants to know. Linguist Robert Englebretson joins us for a time travel adventure to unravel the mysteries of a question that has stumped scientists for centuries.
It’s Tumble’s 150th episode! 🥳 To celebrate, we had a Quiz Show with four of our biggest fans. Hear our Patrons Zoe, Kai, Eleanor and Avery compete in Tumble trivia with questions from episodes across all nine seasons of our podcast!
![Do Dreams Have Meaning? [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/do-dreams-have-meaning-encore-thumb-be73bc975b.webp)
Happy Holidays! If you would like to help support Tumble and get a last-minute holiday gift, consider becoming a Patreon member! Pledge your support on Patreon.com/tumblepodcast to get access to ad-free episodes, bonus interview extras, and your very own shout…
![Do Aliens Exist? [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/do-aliens-exist-encore-thumb-4b5999ef5d.webp)
Our 150th episode is coming up! To celebrate, we’re doing a quiz show with trivia from all 9 seasons of Tumble! Get entered to be on the show: Sign up now to become a Tumble Patreon on patreon.com/tumblepodcast, and tell us why you would make a great contestan…
![How Do Toilets Work? [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/how-do-toilets-work-encore-thumb-123771df00.webp)
When you have to go, where does it go? That’s what our listener Ellie wants to know. Prepare for potty humor and science as we hear from civil engineer and toilet expert Francis de los Reyes! Who invented the toilet? And what’s “The Great Stink?” We’ll be plun…
What would the world be like without animals? Rae Wynn Grant - ecologist, podcaster, and bear cub cuddler - gives us a picture of what would happen if animals disappeared, and explains how we can stop it from happening. We’ll find out how the Endangered Specie…
It’s a Halloween episode! “There’s a scary secret lurking in the kitty litter…” We’re making a horror movie about a common cat parasite - that can control minds! Toxoplasma gondii makes mice lose their fear of cats, in a plot to take over the world! Biologist …
How does reading work in the brain? It’s a question that has fascinated scientists for years. Could braille - the system of raised dots that blind and low vision people use to read - be the key to understanding how it works? We talk to writer Andrew Leland (“T…
Do fungi breathe? That’s what listener Alice wants to know - and we’ll find out in our punniest episode yet! We visit the Fungarium - the largest and oldest collection of fungi in the world with curator Lee Davies, who describes himself as a “librarian” of mus…
Tune into our Season 9 premiere to find out the answer to this stinky question. We’ll hear about dino gasses from returning guest Jessica Whiteside and their potential ecological impact from David Wilkinson. Our dive into dinosaur digestion will lead us to a s…
A new season of Tumble is coming soon! Have you ever wondered whether dinosaurs burped? Or where the largest fungus collection in the world is? Or how braille was invented? Learn that and more in the newest season of Tumble!
Join Marshall on a Cave Road Trip! On Season 8’s last road trip, you’ll find cave-themed episodes of Tumble, featuring bats and archaeology! Avoid the stalagmites and tune in to these fun episodes:
Do you ever wonder what would happen if Cinderella started her own rock band or if Medusa realized just cool her hair was? Well … there’s a Webby Award winning show called Girl Tales that takes classic stories and puts a unique twist on them, giving girls the …
![The Cave of the Neanderthal Tools [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-cave-of-the-neanderthal-tools-encore-thumb-123771df00.webp)
We're still on vacation, and while we wait to come back for our ninth season of Tumble Science Podcast for Kids, we're sharing one of our favorite episodes from a few years ago: The Cave of the Neanderthal Tools.
Did you know that you can listen to Tumble in Spanish?! Tumble en Español is our Spanish podcast, hosted by native Spanish speakers Nuria Net and Alvaro Ramos. It’s an adaptation, not a translation! Meet Nuria in this episode and learn Tumble en Español’s spec…
About The Ten News
This special Road Trip edition of Tumble includes all five episodes of our Life Lab series, back to back! Listen to hear how scientists are using tiny life to go to Mars, solve climate change, make better clothes, and much, much more.
It's Tumble's first science quiz edition! Play along as Tumble fans Arlo and Talyse compete in three science games: Purr Vs. Roar, What Does the ____ Say?, and Does It Fart? Lindsay and Marshall play quiz masters, while their contestants make a surprising disc…
![What If Oceans Didn't Exist? [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/what-if-oceans-didn-t-exist-encore-thumb-065b28de56.webp)
We'll be back with a new episode in two weeks!
“Do dogs think and feel the way we do?” We all know dogs can’t talk. That’s why scientists have to come up with creative ways of asking our canine companions what’s going on in their minds. We’ll find out why dog cognition scientist Zachary Silver put on a pla…
Can we hear and touch the stars, if we can’t see them? Yuma Decaux is trying to put the night sky into everyone’s hands, through technology and engineering. Find out how stargazing captured Yuma’s imagination when he was six, and how losing his sight inspired …
When did smartness begin? We’ll find out how a neuroscientist blends up brains, and cracks the case of the Tyrannosaurus Rex smarts! Suzana Herculano-Houzel helps us answer listener Penny’s question by explaining how “smartness” might not mean what you think -…
Have you ever wondered what bird you’re hearing? We’re going to discover how to recognize birds by their sound - and what that means for science. Trevor Attenberg is an environmental scientist and science communicator who learned to identify birds without sigh…
How big is the universe? And how do we know? It's a question that puzzled astronomers for centuries. They had no way to measure distance in space - until Henrietta Leavitt showed them how. Henrietta Leavitt was a "computer" in the 19th century, before there we…
We're working on a special project that we'll announce in our next episode! Enjoy one of our favorite episodes while we make it ready for you.
Why are sloths so slow? We’ll find out how one sloth scientist got crafty and discovered why slowness is a sloth’s secret to survival. Rebecca Cliffe, founder of the Sloth Conservation Foundation, shares the story of her quest to study these sneakily stealthy …
Explore the sounds of ocean science on a sound scavenger hunt! Tune in as oceanographer Amy Bower takes us to the sea, to show us how she uses sound to study ocean currents and make ocean science accessible for blind and visually impaired people. Listen up and…
A Black botanist is on a mission to discover the hidden stories of Black plant scientists throughout history. Shawn Abrahams shares how Black people are responsible for vanilla cupcakes, and the microscopes you use in science class! Plus, hear how Shawn starte…
Join us on an Arctic adventure as we head out onto the sea ice with a polar bear scientist! Andrew Derocher shares exciting stories of flying in helicopters, getting bit by a polar bear cub, and discovering how polar bears are surviving in a warming world.
![The Science of Butts [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-science-of-butts-encore-thumb-123771df00.webp)
This is a re-broadcast of one of our most popular episodes of season 7, The Science of Butts!
Join Marshall as he treks through a blizzard to find a warm spot by the fire, and listen to these great winter-themed episodes of Tumble. In this Road Trip Pack, you'll hear these episodes:
How likely is it that we’ll find intelligent alien life on other planets? Are there extraterrestrial civilizations that we could contact - or that could contact us? And what would these aliens be like? We’re going to try to answer these big questions with the …
In this special road-trip collection of Tumble episodes, you'll hear all about scientists who are making a difference in their communities. This episode pack contains:
When you have to go, where does it go? That’s what our listener Ellie wants to know. Prepare for potty humor and science as we hear from civil engineer and toilet expert Francis de los Reyes! Who invented the toilet? And what’s “The Great Stink?” We’ll be plun…
Ever wonder what a mummy smells like? Or why millions of animals were mummified - including baboons? We climb into ancient tombs with Egyptologist Salima Ikram, to discover the science and culture of animal mummies. Salima is a real life tomb adventurer, cauti…
If there’s too much gas in the atmosphere, who you gonna call? Gas Busters! Find out how a bacteria from a rabbit’s gut could help fight climate change, in our final episode of Life Lab.
Take the Kids Listen Survey!
So far in Life Lab, we’ve uncovered the power of synthetic biology. But with great power comes great responsibility! In this episode, we’ll ask “Is this a good idea?” when it comes to changing the DNA of mosquitoes to fight a deadly virus.
Should we make the move to Mars? And how would we live there? Join us as we pack our bags for Mars with the help of synthetic biology. We’ll find out how astronauts could grow their own food, medicine, and even building materials on the Red Planet. But when Li…
What does cheese have to do with technology? What does engineering have to do with biology? And why should we know about it? We’ll slice into these questions to get a taste of what synthetic biology is, how it's already in our lives, and how it got there.
Season 8 of Tumble begins September 16 with a special, five-part series called “Life Lab.” Life Lab will explore the incredible power of a new technology you probably haven’t heard of. This technology could solve some of the biggest challenges on our planet, a…
Hear sounds created from images by NASA's James Webb Space Telescope, in this updated episode! The biggest space telescope in the universe had a busy summer, wowing us with incredible images of the cosmos like we've never seen before. But it took a lot of work…
Join Marshall for our final Road Trip adventure of the summer, as we travel back to the age of the dinosaurs! We'll be sharing a bunch of our favorite episodes about everyone's prehistoric creatures. In this collection, you'll find:
Tumble presents one of our favorite podcasts from RTÉjr Radio: Cereal!
Join Marshall on a fantastic adventure to the center of the human brain. In this road trip adventure pack, we've put together four classic episodes of Tumble for your listening enjoyment. Learn all about the wonders of the human brain in these episodes:
Since Lindsay and Marshall are on a break for the summer, we thought we'd share with you one of our favorite other podcasts! We present to you: Tai Asks Why.
Join Marshall out to eat as we share this special road trip fun pack of Tumble episodes having to do with food! This collection of five classic Tumble episodes includes:
What would Earth be like if our oceans never existed? That’s what Charlie wants to know! We recruit Earth detective Lucia Perez-Diaz to help us track down clues hidden within our planet’s rocks. Our investigation takes us through the mysteries of how water got…
![The Seed Treasure Map [UPDATE!]](https://imgs.soundcarrot.com/podcasts/tumble/the-seed-treasure-map-update-thumb-4dac72fa9b.webp)
How many seeds sprouted in the historic Beal Seed experiment we covered in 2021? Find out in this updated version of one of our favorite episodes for spring! We tag along with scientists following a secret map on a mission under the cover of night, to find a b…
Why do bubbles pop, and why do bubbles have shadows? We’re in double bubble trouble with two listener questions. Luckily, Dr. Bubbles is here to save the day! We’ll find out how a normal, everyman physicist named Justin Burton became a superhero bubble scienti…
Why do colors exist in the world? That’s what Phoebe wants to know. The answer might change how you think about the colors that you see! Neuroscientist and artist Bevil Conway bends our minds and our eyes, to show us how colors are the ultimate optical illusio…
Trash is one of the biggest problems on the planet. But scientists are coming up with solutions that might surprise you. In this Earth Day episode, we meet two researchers who are tackling trash in two very different ways. Kevin Solomon hopes to solve the chal…
Where did the asteroid that killed the dinosaurs come from? That’s what our listener Lucian wants to know. Prepare to hear a “podcast movie” about the fateful impact, starting with an explosive collision in space that sent asteroids careening towards Earth. Th…
Come on a trip to Dreamland, as we explore the history of dreaming - and how science changed their meaning, forever. Our guide is Sidarta Ribiero, neuroscientist and author of “The Oracle of Night.” We’ll travel back to ancient times when gods and goddesses ap…
Why and how do cats purr? That’s what Reid wants to know. It sounds like a simple question, but it leads us to a deep challenge: Can we ever understand cats? To find out, we launch a full-scale cat purr investigation. You’ll hear from a puzzled veterinarian, a…
Clare wants to know if bugs have elbows. Her question starts a debate between Team Bug Arms and Elbows, and Team Bug Legs and Knees! Choose a side, and come on the trail of a bug bod mystery with superstar entomologist and dragonfly specialist Jessica Ware. Tu…
What is a butt? That’s what science journalist Katherine Wu wanted to know. Her quest for an answer leads her into a web of big butt questions, and a search to find the top butt scientists in the world. She discovers a debate over where butts come from, and a …
How do you count the cutest seals on the planet? With the help from thousands of people around the world! Conservation scientist Leo Salas explains the story behind the first-ever global count of Weddell seals in Antarctica. Plus, you’ll find out what counting…
![Dinopoop Series Part 2 [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/dinopoop-series-part-2-encore-thumb-e84772f6b2.webp)
All-new Tumble episodes return January 21! We can't wait to share what we have in store.
![A Big Announcement and Dinopoop Series Part 1 [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/a-big-announcement-and-dinopoop-series-part-1-encore-thumb-e84772f6b2.webp)
We have some exciting changes to share with you at the beginning of this episode!
How do you launch the largest space telescope ever built into space? The James Webb Space Telescope will travel 1.5 million miles away from Earth to help answer some of our biggest questions about the universe. But first, it has to be launched on a rocket - an…
What do you need to know about the new COVID-19 vaccines for ages 5 - 11? Sam, age 8, and Natalie, age 10, are here to help! They participated in a COVID vaccine trial, which is an important part of the science that will help end the threat of coronavirus. Alo…
What tools did Neanderthals use? That’s what Leo wants to know. We dig into the past of Neanderthal archeology, back to when people used to excavate caves with dynamite! Archeologist and author Rebecca Wragg Sykes shares the explosive story of how Neanderthals…
Why do carved pumpkins rot faster than uncarved pumpkins? That’s what Ari, an 11 year old podcast host, wants to know. To find out what’s making good Jack O’Lanterns go bad, we turn to squash detective/ scientist Michael Mazourek. Together, we track down clues…
How do you find out why we laugh? With tickling, of course! Gorillas and other great apes appear to love being tickled, and sound like they’re laughing just like us. Animal biologist Marina Davila-Ross thought tickling might connect humans and great apes - and…
Want to explore the hidden treasures of the deep sea? Come on board the EV Nautilus, a research ship that searches the seafloor with the help of robot submarines! Our guide is Taylorann Smith, who’s on her third trip on the ship! We’ll witness a whalefall, mee…
What are the worst sounds in the world? Lots of noises that can send your hands rushing to cover your ears, but only a select can be the most horrible! Fortunately, one brave acoustic scientist named Trevor Cox decided to find out, by asking hundreds of thousa…
Tumble's seventh season is coming at you THIS FRIDAY! Here's a little taste of what's in store.
![What's Inside of An Atom? [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/what-s-inside-of-an-atom-encore-thumb-2e6d2f101e.webp)
We’re only two weeks away from starting our new season, with all new episodes, on September 17! We’re putting the finishing touches on the first episode as we speak, and we can’t wait to share it with you. But for now, enjoy one of our most favorite episodes a…
![The Poop Collector [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-poop-collector-encore-thumb-f1e3e1f024.webp)
Tumble will return with all new episodes for Season 7, starting September 17! In the meantime, enjoy one of our favorite episodes of Season 6.
Arrrrr! Join two of our favorite pirates on an adventure across the seven seas of science. In this ocean-themed road trip compilation, you'll hear a bunch of our favorite ocean episodes. Whether it's going on a deep-sea expedition with the JOIDES resolution, a…
Tumble Media has a new podcast, Yoga Kids Adventure! Lindsay and Marshall share why we decided to make a yoga podcast for kids, and how to use the show! Then, try out our first episode. It's a trip to the beach!
From the makers of Tumble, meet Yoga Kids Adventure - the first ever yoga podcast for kids! Lindsay and Marshall give a sneak of our brand new yoga podcast in this mini-episode.
How did some animals start to walk on land? Why were dinosaurs so huge? What did our primate ancestors look like? Let’s dive into this special road-trip edition of Tumble, a safari through animal evolution. Your tour guides have put together some of their favo…
![The Volcano Eruption Adventure [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-volcano-eruption-adventure-encore-thumb-123771df00.webp)
Would you fly to the top of a volcano that’s about to erupt at any moment? Volcanologist Helena Buurman did, and survived to tell the tale! In 2008, Helena was monitoring Mount Redoubt in Alaska, when the ground beneath the volcano began to shake. What follows…
How can science help people? Charita Castro is a scientist who’s spent her life using science to make kids’ lives better, all over the world. When she was little, she saw something that made her ask a big question: “Why don’t other kids have what I have?” She …
What’s your favorite food? Why does it taste so good? It turns out, what we think is tasty isn’t just a matter of opinion. It’s science! Ecologist and science writer Rob Dunn takes us on a journey back in time, before kitchens, cooking, and even farming! We fi…
How long can a seed live? To find out, scientists follow a secret map on a mission under the cover of night, to find a buried treasure. It’s all part of one of the longest running, most legendary experiments in science history! We follow plant biologist David …
Can viruses live in space? That’s what our listener Julian wants to know. It turns out, that’s a question that scientists are asking, too! Kathryn Bywaters is one of the scientists starting the search for viruses in space. She believes that finding viruses mig…
How do you get a galaxy named for you? In this episode, we learn about the incredible life of Burçin Mutlu-Pakdil, who discovered a new type of galaxy now known as “Burçin’s Galaxy.” Since she was young, Burçin dreamed of studying the stars as an astrophysicis…
Fish with legs? Crazy, right? Turns out, fish with legs are a lot more real than you might think! We teamed up with What If World, one of our favorite storytelling podcasts, to answer this question both scientifically and creatively! In our “science version,” …
What are the origins of owls, and why do they stay up at night? We answer questions from two owl-curious Tumble listeners. with the help of Harvard ornithologist Dr. Scott Edwards. He takes us on a journey starting in the time of the dinosaurs, to unravel the …
What happens when a scientist is also a musician? For Barbara McClintock, the combination may have led the way to a Nobel Prize in genetics. Science historian Jocelyn Bosley tells us the story of Barbara’s remarkable life, and how her experience playing banjo …
What happens when a baby falcon meets a balloon telescope in an old Wild West town? An astrophysics animal adventure, of course! Erika Hamden is an astrophysicist who’s attempting to launch a space balloon telescope called FIREBall, an experiment to study dist…
Do trees fart? It’s a question that stumped scientists, and sends us on a journey to some serious science! Come with us as we ponder if trees are butts, whether farts are defined by gas or digestive systems, and why “even the smallest fart counts.”
Do you love fossils and dinosaurs? Let us introduce you to Myria Perez, a paleontology-obsessed kid who grew up to get her dream job! Myria is a 24 year old fossil preparator, which means she prepares fossils to study and display in museums. She shares her jou…
![The Tale of The Hungry Koala [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-tale-of-the-hungry-koala-encore-thumb-6262134f3c.webp)
Tumble returns with all new episodes starting January 22! We’ll have stories about fossils, telescopes, and baby falcons getting into big trouble.
A log that poops presents? Find out about Lindsay and Marshall’s favorite holiday tradition, Tió de Nadal! Followed by one of Tumble’s favorite-ever episode, The Secret Life of Plants.
How did scientists develop coronavirus vaccines in record time? New York Times science reporter Carl Zimmer is our guide to the coronavirus vaccine race - from the starting line, to the point when several teams are racing to the finish line. Find out how scien…
Bacteria are among the simplest forms of life on Earth. Each cell is identical to the one next to it, sharing the same DNA. So why do they all act so differently? Turns out, there’s a “cookbook” inside each teeny tiny bacteria cell, and every single bacteria h…
What are protons, neutrons, and electrons made out of? That’s what listener Xander wants to know. Physics expert Aatish Bhatia takes us on a journey into the atom, and explains how scientists discover things that are too small to see. You’ll find out how Alber…
Happy Halloween! We’re headed to Candy Land, a sugary laboratory where mathematicians found a mysterious candy dagger appear - over and over again. So gather up your candy box, and let’s discover out why mathematicians are studying candy to understand the real…
How do whales use their blowholes to breathe, and what keeps them from filling up with water? There’s no better way to find out than getting up close and personal with whales! That’s what marine mammal biologist Justine Hudson did when she collected whale snot…
Why do some trees go dormant? You’ll discover the answer for yourself in this interactive episode, with the help of tree scientist Nalini Nadkarni! Nalini has loved trees since she was little, and dreamed of inventing a special tree microphone to ask them ques…
If someone asked you to collect your poop every day for a year, would you say yes? That’s what microbiologist Lawrence David did, after watching a movie about a man who said yes to everything. Accepting the challenge led to a year of very stinky international …
All new episodes of Tumble are starting on Friday, September 18! We have a preview of what’s coming (for kids!) and helpful advice from a teacher (for parents!).
![The Rise of the Dinosaurs [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-rise-of-the-dinosaurs-encore-thumb-6262134f3c.webp)
Tumble will return with Season 6 in September! In the meantime, please enjoy one of our favorite episodes from Season 5. Craving new Tumble? Check out our brand new audio course on Himalaya Learning at himalaya.com/tumble! “The Wildlife Of Your Home” has new e…
![How to Become an Astronaut [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/how-to-become-an-astronaut-encore-thumb-123771df00.webp)
New Tumble episodes are coming next month, in Season 6! For now, please enjoy one of our favorite episodes of Season 5, with NASA astronaut Dr. Serena Auñon-Chancellor.
We're so excited to share the first episode of The Wildlife of Your Home Podcourse with you! We think of it as a true crime science story, happening in your own home. But don't be scared - this is definitely a kid-friendly who-dunnit!
Join Tumble for a first-of-its-kind, interactive, educational audio experience. The Wildlife of Your Home Podcourse is a 10 episode series that will train you to become an indoor wildlife investigator - a rare kind of scientist! You’ll learn about ecosystems, …
Mystery Recipe is a children’s podcast about cooking from America’s Test Kitchen Kids. Hosted by Molly Birnbaum (our guest on “The Science of Smell”), the series is a journey through different ingredients, all leading up to a grand finale cook along! The recip…
Stoopkids Stories is a storytelling podcast about Black characters navigating and overcoming different obstacles with family, friends and community. It’s hosted and written by performer Melly Victor.
How would you reinvent something that’s been used for thousands of years, by millions of people? In this episode, we discover the process of invention with Rory Cooper, an engineer who revolutionized the wheelchair. He’s our guide to time traveling back to the…
Would you fly to the top of a volcano that’s about to erupt at any moment? Volcanologist Helena Buurman did, and survived to tell the tale! In 2008, Helena was monitoring Mount Redoubt in Alaska, when the ground beneath the volcano began to shake. What follows…
What happened when astronomers discovered the first alien from another solar system? This is a true story! In 2017, a telescope in Hawaii spotted a distant object in the night sky, behaving like nothing we’d ever seen before. They named it ‘Oumuamua, and an as…
We’re back with a new set of kids’ questions about COVID19, as well as some important updates on questions from our first coronavirus episode. Dr. Juan Dumois, infectious disease pediatrician, answers some tricky questions like, “If you were the coronavirus, w…
Why do foods smell the way that they do? A would-be chef goes on a quest to find out, after she loses the ability to smell. Molly Birnbaum, editor of America’s Test Kitchen Kids and host of the podcast, Mystery Recipe, navigates us through the olfactory organs…
Los virus son como los ninjas más pequeños del planeta. Tienen infinidad de trucos y misterios. ¿Cómo adquieren los animales los virus y cómo se lo pasan a los humanos? Esa era la pregunta de uno de nuestros oyentes. Para averiguar la respuesta, nos adentramos…
How do animals get viruses to pass on to humans? That’s what listener Ian wanted to know. To find out, we’re exploring the science of virology - the study of viruses. Virologist Dr. Jasdave Chahal explains how coronavirus jumped through two species into humans…
Si tienes preguntas sobre el coronavirus, tenemos las respuestas. El coronavirus nos está afectando a todos y puede parecer peligroso y difícil de entender. Por esta razón, Tumble reunió preguntas de sus oyentes y contactó con un experto para responderlas. Le …
**Evidence about behavior and contagion has evolved since this podcast was released. Please refer to current reporting from trusted sources like Stat News for updated information about coronavirus.**
Can science make you better at sports? Sports scientist John Drazan says the answer is yes. John shares how losing a high school basketball game made him start thinking like a scientist. His high school physics teacher stepped in to explain how an idea called …
What’s it like to be a kid doing experiments in one of the most famous science places in the world? Oscar and Mae Johnson were nine and twelve when they traveled to the Galapagos Islands with their scientist dad. The Galapagos are isolated tropical islands mad…
Why do dogs look and act so different from each other? Listener Finley has two Chihuahuas named Peanut and Maggie, and she wants to know why they have different head shapes. She thinks it might have something to do with their DNA. It turns out scientists are s…
Tumble has won a big award for two episodes: “The Cave of the Underground Astronauts” and “The Science of Whiskers.” You’ll hear them both in this twin pack of awesome stories of science discovery.
Tumble is on winter break! In the meantime, enjoy this episode from our friends at But Why?: A Podcast for Curious Kids. We know that our listeners are some of the most curious kids on the planet, so you’re sure to love it. If you enjoy this episode, check out…
Tumble is on winter break! In the meantime, enjoy this bonus-size pack of science from our friends at Fun Kids Science Weekly. In this British podcast, Dan takes a look at the week’s best science stories. And they gave us the year’s best stories, all rolled up…
How do you become an astronaut? That’s what Tumble listener Margaret wants to know. We go straight to the source to get an answer: A NASA astronaut! Dr. Serena Auñon-Chancellor shares her journey to outer space with us. Starting from being a kid watching shutt…
Why do we have snot? Do animals get stuffy noses, too? We delve into the world of thick secretions with the help of Dani Rabiaotti, zoologist and author of “Believe it or Snot: The Definitive Field Guide to Earth’s Slimy Creatures.” You’ll find out why we make…
“What’s the oldest dinosaur?” “How did dinosaurs come alive?” We tackle two listener questions in one epic story of dinosaur domination. Scientist Jessica Whiteside takes us back in time to the dawn of the dinosaurs, 230 million years ago. The story involves f…
Ship ahoy! We’re taking you on an expedition at sea, to do science on a research ship! With the help of geochemist Jeanine Ash, we’re climbing on board the JOIDES Resolution, a one-of-a-kind vessel that travels the seven seas, exploring what lies beneath the s…
How do peregrine falcons dive so fast? That’s what listener Henry wants to know. Peregrines hit speeds of over 200 mph, making them the fastest animal on the planet. Even faster than cheetahs! Mathematical biologist Graham Taylor studies the science of animal …
How does a koala eat eucalyptus leaves? Eucalyptus is toxic to most animals, but they’re a koala’s only food. In this episode, we look past the cuddliness to discover how koalas manage to chow down on the Australian tree species. Biologist Michaela Blyton shar…
![What Would Happen If There Was No Moon? [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/what-would-happen-if-there-was-no-moon-encore-thumb-6262134f3c.webp)
Tumble returns for Season 5 on October 4, with all new episodes!
![The Secret Senses of Plants [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-secret-senses-of-plants-encore-thumb-6262134f3c.webp)
Tumble will return with all new episodes starting October 5! Until then, listen to one of our favorite episodes.
What are Earth’s top ten biggest animals? You’ll find that out, and more, with the help of Earth Ranger Emma! We’re sharing our favorite episode from our friends at Earth Rangers. Earth Rangers is a podcast for anyone who loves to explore the mysteries of natu…
Today, we’re sharing one of our personal favorite podcasts, The Past & The Curious! It’s a history podcast with great music and a sense of humor, hosted by educator Mick Sullivan. This episode is all about bridges - perfect for Tumble fans who love tales of sc…
If you have a long trip this summer, Tumble has the perfect fuel to inspire exploration along the way! Marshall’s off exploring the deepest, darkest part of the jungle, and he put together the perfect playlist of Tumble’s favorite exploration-themed episodes. …
![Science of Poop with Mary Roach [EXTENDED CUT]](https://imgs.soundcarrot.com/podcasts/tumble/science-of-poop-with-mary-roach-extended-cut-thumb-123771df00.webp)
Everybody poops. But why? To find out, science writer Mary Roach takes us on a journey into the alimentary canal - that's the tube that runs from our mouth to our rectum. Along the way, we learn about pooping in space, and how someone else's poop might one day…
![The Voyage of the Ocean Trash with Jenni Brandon [EXTENDED CUT]](https://imgs.soundcarrot.com/podcasts/tumble/the-voyage-of-the-ocean-trash-with-jenni-brandon-extended-cut-thumb-123771df00.webp)
The Great Pacific Garbage Patch is a vast, swirling soup of trash, twice the size of Texas. Can we ever clean it up? That’s what 8 year old Ila wants to know. She lives in Hawaii and likes to pick up trash whenever she goes to the beach. She lives closer to th…
We’re taking a listen back to some of our favorite moments from Season 4 of Tumble, with help from our friend Nate! Nate is the 9 year old host of fellow kids science podcast, “The Show About Science.” Nate interviews Lindsay and Marshall about the stories beh…
This is the last episode of Season 4, but stay tuned for our special summer lineup! We’ll be back for Season 5 in fall 2019.
Why are hurricanes so powerful? Every year, monster storms develop in the Atlantic Ocean from June until November. It seems like they come out of nowhere. But scientists are working to predict them months, years, and even decades before they start. We’ll disco…
How does a country start its own space program? Come with us to Ireland to find out, and meet one of the students whose childhood dreams of launching a satellite are about to come true. Lana Salmon is part of a team from University College Dublin building Irel…
Why do seals have whiskers? Listener Karah’s question dives into the wonderful world of whisker science. Robyn Grant, a self-described “whisker biologist” shares her discoveries of how whiskers work, from training a friendly seal named Moe to making slow-mo mo…
Meet Ana Humphrey. She hasn’t graduated from high school yet, but she’s already discovered 560 places outside our solar system where we could find hidden planets. Ana won the 2019 Regeneron Science Talent Search with her project that used a mathematical model …
How do cheetahs get their super speed? We talk to a cheetah scientist to find out why a spotted cat is the fastest animal on Earth. Cheetahs are literally built for speed! Anne Hilborn spent months scoping out cheetahs on the hunt in the grasslands of the Sere…
Is there a hard edge to the solar system? This question led to a big, breakthrough discovery that changed the way we picture the solar system - and every other solar system in the universe. The Kuiper Belt is a gigantic field of small, icy objects beyond Neptu…
Who would win in a competition, a hamster or bacteria? Place your bets, because we’re going to tell the story of this epic science showdown. Danielle Tullman-Ercek is a synthetic biologist trying to find a better way to make life-saving medicine. To do it, she…
How do species get their scientific names? To find out, Lindsay and Marshall take a field trip behind the scenes at the Smithsonian National Museum of Natural History. That’s where we meet Chris Mah, a sea star scientist who has discovered and named over 50 ne…
Do you love fossils, adventure, and spending time in small spaces? If so, you could become an underground astronaut! Marina Elliot, Becca Peixotto, and Kenni Molopyane found this unusual job description through a Facebook ad, and landed deep inside a cave that…
Join us for a journey through Tumble's favorite animal episodes! Swim with whale sharks in Mexico, climb mountains with pikas, travel back in time to discover our earliest primate relatives, and more. Download two hours of stories of animal science discovery, …
We're going on an indoor expedition to discover the species in our own home! You’ll never look at the bugs in your house the same way again. Ecologist and author Rob Dunn is our guide to exploring what he calls, “the unknown we wake up in every morning.” We’ll…
What’s it like to go inside the world’s largest bat colony? In this special bonus episode, we’re sharing part of our interview with Jessica Dreyer, modern day Bat Woman and biologist. (Remember her from “The Journey to the Bat Cave”?!) Find out why a cave just…
Today we’re presenting the first episode of Becoming Mother Nature, a show from our friends at Gen-Z Media. It’s recommended for listeners 9 and up. For the rest of our listeners, we’ll be back with a new Tumble episode next month!
Not a true crime story, but a true science story! Starring a murder of crows, a person in a creepy mask, and one very curious scientist named Kaeli Swift. We unravel the mystery of what appears like scene from a Halloween fright night, but is actually an exper…
It’s a scientific controversy of planetary proportions! Is Pluto a planet, or not? You decide, after we present two sides of an epic astronomy argument. Back in 2006, the International Astronomer’s Union voted on a definition of the word “planet” that excluded…
A volcanologist imagines a world without volcanoes, and tells us how her recipe for homemade lava bombs might lead to discoveries about ancient volcanoes in outer space! It turns out that volcanoes do more for planets than create natural pyrotechnic displays. …
Join us on a field trip to the biggest bat colony in the world! Bracken Cave is home to 15 million Mexican free-tailed bats. It’s the largest concentration of mammals on the planet, and it’s made up of only mothers and their babies. On our visit, we’ll meet a …
This summer, Tumble went live!! and we want to share the science magic with all our listeners. In this episode, you’ll hear our favorite parts of our Back-to-School Science Splash Jam from the Scottish Rite Theater in Austin, Texas. Get ready for a sea star so…
What if you could shrink your technology down to a size that’s 100,000 times smaller than the width of a human hair? It sounds like sci-fi, but it’s not. Romain Quidant shows us how he helped shrink an entire medical laboratory down to the size of a computer c…
Meet 11-year-old Sarah Galvani-Townsend! She’s our first ever kid science expert. In many ways, Sarah is a regular kid who loves science. But she’s got an unusual hobby. Sarah tells us why studying dogs and rabies is one of her favorite extracurricular activit…
It’s the tale of an epic science adventure. It’s the drama of the hunt for a dragon… a snapdragon! This isn’t the kind of dragon that breathes fire. It’s a flower! And biologists have been hunting for them every summer, in an ongoing quest to understand how sp…
Joe Hanson is a scientist who hosts PBS Digital Studio’s It’s Okay to Be Smart and Hot Mess, a new YouTube show about climate change. He’s been a longtime friend of Tumble’s, so it was a no-brainer to ask him to help answer listener questions!
Got a long trip coming up? Turn it into an adventure into outer space! Marshall’s headed out on an intergalactic journey. He’s lined up the best episodes on astronomy for your road trip! See what it’s like to spend a year on Mars, take a wild ride through the …
**Recommended for listeners age 8 and up** This week, we’re presenting a new show from our friends at Gen Z Media! It’s called Young Ben Franklin, and it’s a mystery-adventure series about the 14 year old kid who went on to become one of America’s most famous …
This week, we’re taking you to visit one of most powerful computers in the world! It’s called MareNostrum 4, and it’s housed in a former chapel in Barcelona, Spain. We’ll find out how scientists are using supercomputers to tackle some of the world’s biggest pr…
You’ve never heard of a summer camp like this before. It’s a science camp, but the campers ARE the science! Imagine playing volleyball with electrode helmets, going to bed attached to sleep machines, and having scientists study popsicles made of your spit (“sp…
What would happen if our Moon suddenly disappeared? Would we still have tides? It turns out that the Moon has a much bigger influence on Earth than you might think. Without the Moon, life as we know it would not exist! Rocket scientist Miquel Sureda explains w…
For Earth Day, we’re discovering how the tiny, adorable pika is helping scientists study climate change! Temperatures in their mountain habitat are getting warmer, and rain and snow isn’t as predictable as it used to be. Scientists have discovered that the num…
What happens when a Brownie Troop goes to a weather balloon launch? One Brownie guesses that they’ll make contact with unicorns in the sky. Atmospheric scientist Gary Morris shows us what it takes to launch the biggest balloon you’ve ever seen to the very top …
This is #2 in a series on dinosaur coprolites, AKA fossilized feces! In the 1800’s, Mary Anning was known as the best fossil hunter in England. She made many great discoveries, including dinosaur poop. With help from our friend Kidosaurus and children’s scienc…
Call it fossil feces, dinosaur dung, or preserved poo. This is the first of a two part series on dinosaur poop! We kick it off with the modern-day science of coprolites. Paleontologist Karen Chin shares how she cracked the case of a mysterious coprolite, and d…
Return of the mailbag! The Tumble inbox is filling up with questions, and Marshall scrambles to answer them while Lindsay relaxes with a glass of lemonade. We find out why rainbows don’t fall down, why naked mole rats are naked, whether you can sneeze with you…
“How do sea stars grip onto rocks?” That’s what listener Chloe wants to know. To find out, we take a trip to an aquarium to see sea stars’ tiny tube feet in action, and call up sea star expert Chris Mah. What we learn is a surprising story of how scientists ma…
“Do plants feel pain?” Jude’s question leads us to stunning discoveries about what plants feel, what they hear, and even what they talk about! Biologist Heidi Appel reveals how scientists learned about plants’ inner lives, and tells us the story of how she dis…
Meet Envirobot, a robotic eel who slithers along the surface of the water, seeking the source of water pollution. The future is here, and it's full of swimming robots! We meet members of the team behind Envirobot, Bezhad Bayat and Alessandro Crespi. They tell …
"How are minerals made?" "What makes rocks sparkly?" Mary Lou and Tilly are curious about minerals, the chemical compounds that make up rocks! Get ready for a behind-the-scenes tour of the Field Museum in Chicago! Collections manager Jim Holstein opens cabinet…
“Could we ship Earth’s extra carbon dioxide to Mars?” Our listener Ilan has come up with a brilliant plan to stop climate change in its tracks, and make Mars a place we can live - AT THE SAME TIME. Your intrepid Tumble hosts attempt to lift his idea off the gr…
It's a mail bag episode! While Lindsay is away, Marshall is going through a bunch of listener questions and answering them as best he can. Do monkeys get ice cream headaches? Why is Play-doh so salty? Listen to find out the answer to this and more in this spec…
Why do people believe in ghosts? And can science ever prove that they don’t exist? We take a road trip with Dennis Waskul, a sociologist who traveled to graveyards and “haunted” houses to hear ghost stories, from the people who lived them. He wanted to find ou…
We often talk about how there are so many great kid podcasts out there to discover. Now, we're bringing those podcasts directly to you, in this sampler pack of a bonus episode! Find these podcasts and more at applepodcasts.com/kids
Children are the best language learners, says psycholinguist Evan Kidd. But how do children learn languages so easily, and why is learning another language so hard when you're an adult? It's something we've been wondering since we moved to Barcelona, Spain thi…
Where does electricity come from? That's what listener Ati wants to know. Lindsay and Marshall get on the case of a massive blackout that plunged 50 million people into darkness Scientist and engineer Mike Legatt helps us solve the mystery.
Do solar systems move? That’s what Levan wants to know. NASA astronomer Stefanie Milam shares how technology has allowed humans to see the course our solar system has charted through space – and how a powerful new telescope will widen our view even more.
How does our brain remember things? Neuroscientist Andre Fenton found that question has no easy answers. Andre has spent years experimenting with PKMZeta, a tiny molecule he believes is the key to forming memories. But what if he’s wrong?
Tumble will be back with all new episodes this fall! Make sure you're subscribed to Tumble to get the first episode on September 8. This season, expect more great stories about science discovery, from around the world!
Everybody poops. But why? To find out, science writer Mary Roach takes us on a journey into the alimentary canal - that's the tube that runs from our mouth to our rectum. Along the way, we learn about pooping in space, and how someone else's poop might one day…
Dinosaurs didn’t roar. What?! Paleontologist Julia Clarke has been uncovering clues to how dinosaurs sounded, in ancient bird fossils from Antarctica. She shares the story of her groundbreaking fossil find that revealed the surprising sounds of the dinosaur wo…
Are we alone in the universe, or are there other life forms out there? That's what Daniel, a listener from New Zealand, wants to know. Scientists have been searching for the answer with a surprising tool: radio. But this isn't any old radio. Seth Shostak, seni…
Brothers Ian, Sam, and Eli want to know, “How do vaccines keep our bodies healthy?” We meet two scientists, Omar Khan and Jasdave Chahal, who have teamed up to tackle the world’s most dangerous diseases with a new technique for developing vaccines. They tell t…
Who is the oldest primate, and is it our great-great-great grandfather? Listener Elena's question takes us into a laboratory chock full of fossils, and brings us back to the impact that killed most of the dinosaurs. Anthropologist Chris Kirk introduces us to o…
Wonder why a cat always lands on its feet? It's a question that stumped scientists for over a hundred years. Some suspected that mischievous cats were breaking the laws of physics! Was it the catnip? Or was it a mystery of physics? Physicist Greg Gbur helps us…
Imagine this: You’re in the middle of the Gulf of Mexico with a big fish on the line. But suddenly, you’re surrounded by whale sharks, the biggest fish in the world. What do you do?! If you’re a scientist, you get curious. Marine biologist Rafael de la Parra t…
What would you bring on a trip to Mars? That’s a question Sheyna Gifford had to ask herself when she packed to live on Mars for a year. Wait, what?! We find out about a NASA experiment on top of a volcano that’s getting astronauts prepared for a real-life miss…
The People of the Snow with Kelly Elder
Something is living in your showerhead. Scientists need your help to figure out what it is, and why it’s there. Biologist Noah Fierer is enlisting people around the country to search out the tiny, microscopic life in showers. Find out what happens when Lindsay…
We dive into the gross side of science with Anna Rothschild, host of the PBS/NOVA series Gross Science! Anna tells us how a robot named Vomiting Larry helped scientists discover how to stop the spread of a potentially deadly sickness. Plus, fourth graders tell…
What is the Earth made of? That’s the question at the core (pun intended!) of this episode. Geologist Ta-Shana Taylor shares the fascinating story behind a decades-long quest to drill into the Earth. You’ll be wanting to “Get Down to the Moho” after listening!…
It's almost here! We've got brand new episodes of Tumble starting January 13. Here's a quick sample of what's to come. Subscribe now on iTunes or wherever you listen to podcasts. Have an Android? Try our partner Wondery's new app on Google Play!
![The Voyage of the Ocean Trash with Jenni Brandon [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-voyage-of-the-ocean-trash-with-jenni-brandon-encore-thumb-123771df00.webp)
Our friends Andrew & Polly from the podcast Ear Snacks introduce their favorite Tumble episode. Listener Ilya asks if there's a way to remove all the trash from the ocean. Scientist Jenni Brandon helps us investigate the Great Pacific Garbage Patch - a vast, s…
![The Secrets of Bugs and Bats [BONUS EPISODE]](https://imgs.soundcarrot.com/podcasts/tumble/the-secrets-of-bugs-and-bats-bonus-episode-thumb-d8df027726.webp)
In this special bonus episode, some of our favorite guest scientists answer listener questions! It’s like a Tumble reunion! Learn about the bugs you can find near your home, how ants let each other know about food finds, and if bats fly at night so they can ea…
![The Case of the Invisibility Cloak with Andrea Alu [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-case-of-the-invisibility-cloak-with-andrea-alu-encore-thumb-123771df00.webp)
Invisibility cloaks: Not just for wizards? Listener Quinn introduces his favorite Tumble episode, where we explore the very real science behind invisibility!
![The Quest for the Hidden Planets with Joel Green [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-quest-for-the-hidden-planets-with-joel-green-encore-thumb-a7fc7eeacb.webp)
Our listener Griffin picked an exciting tale of outer space for this week's episode! Astronomer Joel Green explains how scientists discover and photograph planets outside our solar system. Have a few spare minutes? Fill out our listener survey at wondery.com/s…
![The Puzzle of the Friendly Dog with Mia Cobb and Krista McPherson [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-puzzle-of-the-friendly-dog-with-mia-cobb-and-krista-mcpherson-encore-thumb-2f6d368430.webp)
What makes dogs loyal? This question comes from Amalia, a sixth grade student. We ask two different dog scientists, and their answers will surprise you. We learn about an experiment that tests dogs’ loyalty - or does it? Get ready to get inside the head of a d…
Why do people get scared and how? We ask Dr. Margee Kerr, a scientist who studies the science of fear. She once set up a basement lab in a Halloween haunted house to understand why people sign up to get scared. She found out that going to a house of horror is …
![The Hunt for Black Holes with Karl Gebhardt [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-hunt-for-black-holes-with-karl-gebhardt-encore-thumb-123771df00.webp)
A fan favorite episode, now with new black hole discoveries! We answer our first listener question, how do black holes work? We talk to Dr. Karl Gebhardt, who has helped discover over half of the black holes that astronomers have ever found. Light cannot escap…
![How to Interview a Scientist [BONUS EPISODE]](https://imgs.soundcarrot.com/podcasts/tumble/how-to-interview-a-scientist-bonus-episode-thumb-6d22ef1583.webp)
Send us your interviews with scientists, and they might end up on our show! In this special bonus episode, we'll teach you how to interview a scientist. It's easier than you might think, and it's super fun. You might learn something that changes your life, or …
![The Tale of the Bacteria Farmer with Sarah Richardson [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-tale-of-the-bacteria-farmer-with-sarah-richardson-encore-thumb-71de14d4ee.webp)
Sarah Richardson, a biologist, dreams of being of a farmer. Instead of tending to barns full of cows making milk, she'll have petri dishes full of bacteria. We're taking a break until 2017 to create more stories of science discovery. But we're not going away! …
![The Journey to the Deepest Part of the Ocean with Gaelin Rosenwaks [ENCORE]](https://imgs.soundcarrot.com/podcasts/tumble/the-journey-to-the-deepest-part-of-the-ocean-with-gaelin-rosenwaks-encore-thumb-f8d7a1440c.webp)
Where is the deepest part of the ocean, and have we been there in person? Ocean explorer Gaelin Rosenwaks answers with an amazing story of the first explorers to dive to a mysterious place called Challenger Deep. It's filled with awesome adventure, incredible …
Why do batteries - even rechargeable ones - die? What if there was a battery that lasted forever? Mya Le Thai, a young scientist, was sick of recharging her phone. So she set out make make a longer lasting battery. What she created was better than she had ever…
Why are there so many different species of ants? That’s what entomologist Corrie Moreau wants to know. There are more species of ants than there are species of mammals and birds - combined! Her quest starts in the jungle and ends in a lab, where she unravels t…
Are cats evil, or just misunderstood? That's what our friends at Brains On debate for a panel of kid judges. Find out what they decide in this special guest episode! Plus, Lindsay and Marshall weigh in on their conclusions. What do you want to know about cats…
Why do fireflies flash their lights on and off, on and off? That’s what four curious kids want to know. Biologist Sara Lewis has studied fireflies for decades, and she’s cracked the code of their spectacular light displays. She explains why fireflies light up …
We have a short and sweet summer episode for you! Charles Darwin is known as the father of evolution, but he got his start as a naturalist as a young man. He took an ambitious five year journey around the year, studying thousands of species of plants and anima…
The Great Pacific Garbage Patch is a vast, swirling soup of trash, twice the size of Texas. Can we ever clean it up? That’s what 8 year old Ila wants to know. She lives in Hawaii and likes to pick up trash whenever she goes to the beach. She lives closer to th…
What are invisibility cloaks made of, and when can we buy them in gift shops? That's right, invisibility cloaks are not just for wizards anymore. We get into the very real science of invisibility with Dr. Andrea Alu. Dr. Alu is one of the leading scientists wo…
Where is the deepest part of the ocean, and have we been there in person? Ocean explorer Gaelin Rosenwaks answers with an amazing story of the first explorers to dive to a mysterious place called Challenger Deep. It's filled with awesome adventure, incredible …
How do black holes work? And how do we learn about them, if they're impossible to see? We talk to Dr. Karl Gebhardt, who has helped discover over half of the black holes that astronomers have ever found. Light cannot escape from a black hole, which means that …
What happens to your brain when you get a concussion? It's common to get hit in the head when you play rough or risky sports. Everyone knows a concussion makes you woozy for a while. But the impacts of repeated concussions can last much longer. Learn how Ameri…
We take you inside the famed Explorers Club in New York City, where we meet a real explorer! Richard Garriott de Cayeux has been around the world and into space on scientific expeditions. He shares the stories of famous explorers and his own family expeditions…
Does the universe go on forever? Or does it have an edge? Jack and Kate have a few ideas about how to find out, involving a GoPro and a rocket. We ask astrophysicist Katie Mack if the universe is infinite and if a robot explorer will ever send us a selfie from…
What makes dogs loyal? This question comes from Amalia, a sixth grade student. We ask two different dog scientists, and their answers will surprise you. We learn about an experiment that tests dogs’ loyalty - or does it? Get ready to get inside the head of a d…
Why do bats hang upside down? That's what fifth graders living in the Bat Capital of the World - Austin, Texas - want to know. We visit Micaela Jemison at the world headquarters of Bat Conservation International to figure out why bats have such weird sleep hab…
Sarah Richardson, a biologist, dreams of being of a farmer. Instead of tending to barns full of cows making milk, she'll have petri dishes full of bacteria. They'll be making a brand new kind of fuel that could replace gas we put in our cars. But just like the…
What would the world be like if there were no parasites? You might actually miss those mind-controlling blood suckers. Science writer Carl Zimmer tells us how scientists are discovering the hidden importance of parasites' dirty work.
![[UPDATE] The Night of the Decoy Spider with Joe Hanson](https://imgs.soundcarrot.com/podcasts/tumble/update-the-night-of-the-decoy-spider-with-joe-hanson-thumb-123771df00.webp)
[Now, with new information on decoy spider research!] One dark night in the Amazon, three guys stumble face first into a new discovery - and capture it all on video. Joe Hanson, from It's Okay to Be Smart, tells the story. Music in this episode by Broke for Fr…
No one knows what dark energy is or why it exists. So how did astronomers discover the mysterious force that's pulling the universe apart? Astronomer Jeff Silverman explains one of the universe's biggest mysteries. Learn more at www.tumblepodcast.com! Subscrib…
Emily Graslie, host of the YouTube science show The Brain Scoop, explains how an encounter with a dead mouse at a natural history museum steered her toward one of the most important discoveries of her life. (This episode contains references to preserving dead …
Dinosaurs never went extinct. They're living in our backyards. How did scientists discover that birds are secretly dinosaurs? Science writer Riley Black tells us how some suspicious fuzz on a farmer's fossil find cracked open the biggest case in dinosaur paleo…
A mystery that began with an unusual star spotted in the year 1054 took almost a thousand years to solve. In this episode, supernova expert Jeffrey Silverman explains how astronomers cracked the case and discovered what happened in the ancient night sky. Hint:…
When a tiny beetle starts destroying farmers' fields in Australia, scientists decide to bring in a giant toad to bite back. But they never predicted what would happen next. In this episode, science writer Sheril Kirshenbaum tells a story of science gone wild. …
What does the moment of discovery sound like? In this episode, Joe Hanson of It's Okay to Be Smart shares the story of a fellow YouTuber who stumbles upon an incredible new species while filming in the Peruvian rainforest. Music in this episode is by Broke For…
Science fiction is full of adventures to distant planets outside our solar system. But it wasn't until 20 years ago that astronomers were able to confirm that they exist. Dr. Joel Green explains how astronomers discover and photograph planets in galaxies far, …
One man's very, very unfortunate accident made him one of the most famous patients of all time. Dr. Rachel Berman shares the story of how this man helped scientists figure out what the brain does. Music in this episode is by Podington Bear. Photo of Phineas Ga…
Dr. Hayley Gillespie, an ecologist, tells us how she cracked the case of the Barton Springs Salamander's mysterious meals. Music by YACHT, courtesy of the Free Music Archive and Creative Commons. Photo courtesy of Dr. Hayley Gillespie.
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