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1. The Cave of the Upside Down Bat with Micaela Jemison

The Cave of the Upside Down Bat with Micaela Jemison

Why do bats hang upside down? That's what Jack, Jacob, and Kara want to know. To find out, Lindsay visits Micaela Jemison at Bat Conservation International's world headquarters in Austin, Texas - the Bat Capital of the World! And Marshall begins his training for life as the Lord of the Bats. Send your bat t-shirt drawings and designs to [email protected]! We want to see them! This is the first of many episodes of answering kids science questions - and also the first of all original music by Marshall!

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2. Tumble Presents: Becoming Mother Nature

Tumble Presents: Becoming Mother Nature

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! When Chloe is sent off to live with her mysterious and eccentric grandmother, she learns an unbelievable secret. Grandma Ivy is none other than Mother Nature herself! And Chloe is next in line to assume the power and responsibility of the job. Can a twelve-year-old learn to balance the entire world’s ecosystem while just trying to fit in at her new school? Only Mother Nature knows.

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3. The Case of the Invisibility Cloak with Andrea Alu

The Case of the Invisibility Cloak with Andrea Alu

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 working on "cloaking." We learn how scientists are playing with the laws of physics and optics to turn fantasy into scientific reality.  Have a question for Tumble? Send us a recording with your name, age, question, what you think the answer is, and how scientists might find out. Email it to [email protected]! If you love Tumble, support us by writing a review on iTunes or donating on our website. For more about Kids Listen, a new awesome organization for kids podcasts, visit kidslisten.org.  

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4. The Mystery of the Barton Springs Salamander with Dr. Hayley Gillespie

The Mystery of the Barton Springs Salamander with Dr. Hayley Gillespie

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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5. The World Without Parasites with Carl Zimmer

The World Without Parasites with Carl Zimmer

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.

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6. The Case of the Living Dinosaurs with Brian Switek

The Case of the Living Dinosaurs with Brian Switek

Dinosaurs never went extinct. They're living in our backyards. How did scientists discover that birds are secretly dinosaurs? Science writer Brian Switek tells us how some suspicious fuzz on a farmer's fossil find cracked open the biggest case in dinosaur paleontology. Music in this episode by Podington Bear, Noveller, and Johnny the Ripper, courtesy of the Free Music Archive.

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7. The Tale of The Brain Scoop with Emily Graslie

The Tale of The Brain Scoop with Emily Graslie

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 animals.) Music in this episode is by Podington Bear. Brain Scoop clips used with permission.

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8. The Puzzle of the Friendly Dog with Mia Cobb and Krista Macpherson

The Puzzle of the Friendly Dog with Mia Cobb and Krista Macpherson

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 dog! We want to hear about your dogs! Email us at [email protected], visit us at tumblepodcast.com, and like us on Facebook. Photo courtesy of Mia Cobb.

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9. The Adventure of The Explorers Club with Richard Garriott

The Adventure of The Explorers Club with Richard Garriott

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 – beginning with his astronaut dad. Plus, he explains on how to find a real meteorite near your house! If you want to see some of the amazing collections of Explorer’s Club history, watch video tours on our blog at http://www.tumblepodcast.com We’re looking for your questions for ocean explorer Gaelin Rosenwaks. Send a recording of your question to [email protected] by April 26, 2016. Love our show? Leave us a review on iTunes! https://itunes.apple.com/us/podcast/the-tumble-podcast/id984771479

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10. The Meow of the Misunderstood Cat with Brains On

The Meow of the Misunderstood Cat with Brains On

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? Let us know on our Facebook or Twitter pages, or email us at [email protected] Support Tumble on Patreon, and you can have your name read on the show (and get more great stuff!) Pledge at patreon.com/tumblepodcast. Subscribe on iTunes and leave us a review! itunes.apple.com/us/podcast/the-tumble-podcast/id984771479

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11. The Tale Of The Giant Toad with Sheril Kirshenbaum

The Tale Of The Giant Toad with Sheril Kirshenbaum

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. Music in this episode is by Podington Bear.

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12. The Mystery of When Brains and Sports Collide with Kiki Sanford

The Mystery of When Brains and Sports Collide with Kiki Sanford

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 American football players have helped scientists unravel a mystery that could change the way that sports are played. With Dr. Kiki Sanford, host of the wonderful podcast This Week in Science.

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13. Tumble Listeners Tell You Why You Should Visit Their Town

Tumble Listeners Tell You Why You Should Visit Their Town

We asked our listeners where they live, and why they think people should visit! Here's what they said.

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14. The Secret of Dark Energy with Jeff Silverman

The Secret of Dark Energy with Jeff Silverman

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! Subscribe on iTunes and leave us a review. Music by Noveller and YACHT, courtesy of the Free Music Archive.

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15. The Tale of the Bacteria Farmer with Sarah Richardson [ENCORE]

The Tale of the Bacteria Farmer with Sarah Richardson [ENCORE]

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! Far from it. We'll be hard at work dreaming and making new awesome stuff for you. Stay in touch with us by Facebook, Twitter, and tumblepodcast.com, where you can send us questions, comments, drawings, and videos!  This is a great time to show your support for our new season by pledging on Patreon: patreon.com/tumblepodcast Subscribe & leave a review on iTunes: itunes.apple.com/us/podcast/the-tumble-podcast/id984771479 Thanks for listening!

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16. The Quest for the Edge of the Universe with Katie Mack

The Quest for the Edge of the Universe with Katie Mack

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 the very edge of its expansion. Her answer will boggle your mind. Visit tumblepodcast.com to learn more! Subscribe on iTunes at https://itunes.apple.com/us/podcast/the-tumble-podcast/id984771479, and leave us a review. Music by Marshall Escamilla and Podington Bear. Photo of a distant galaxy cluster courtesy of NASA, ESA, CXC, NRAO/AUI/NSF, STScI, and R. van Weeren (Harvard-Smithsonian Center for Astrophysics).

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17. We Ain't Afraid of No Ghosts: A Tumble Halloween

We Ain't Afraid of No Ghosts: A Tumble Halloween

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 out why 50% of Americans believe in ghosts. What he discovered might spook you - in a good way! (Note: This episode is NOT scary.)

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18. The Night Of The Decoy Spider with Joe Hanson

The Night Of The Decoy Spider with Joe Hanson

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 Free. Video still is from from Smarter Every Day.

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19. The Hunt for Black Holes with Karl Gebhardt

The Hunt for Black Holes with Karl Gebhardt

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 they are impossible to see. We find out the secret to finding black holes, and how what happens inside might explain mysteries of gravity. Astronomy adventures are ahead in this episode!    Music in this episode is by Secret Agent 23 Skidoo from his upcoming album, Infinity Plus One.   Ask us a question, listen to more episodes, and donate at tumblepodcast.com. Subscribe to Tumble Science Podcast for Kids and review on iTunes. Follow on Facebook and Twitter. Thanks for listening! 

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