But Why: A Podcast for Curious Kids

Latest Episodes:

What is ADHD? May 29, 2026

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What is ADHD? How does ADHD affect the brain? Why do only some people have it? How can we control our brains? An estimated 11 percent of U.S. kids are diagnosed with the neurological condition known as ADHD, so you may have it or have a friend or classmate with this unique way of thinking. In this episode we explore how you can learn to balance the strengths and challenges of ADHD with Dr. Liz Angoff, author of the Brain Building Book.

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What are eels? May 15, 2026

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What are eels? And why are some eels electric? We head to Poughkeepsie, New York to learn about eels with Chris Bowser, Hudson River estuary educator with the New York Department of Environmental Conservation. Plus we learn about electric eels. Electric eels have captured the imagination of many people, but they’re not actually considered eels by the scientific community. They’re a type of knife fish, more closely related to catfish and carp. But they are electric! So we’ll tackle why they’re electric and how they create electricity. David de Santana, of the Smithsonian Museum of Natural History, tells us what it’s like to study electric eels in the Amazon.

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Why does green mean go and red mean stop? May 01, 2026

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Why is there traffic? How do traffic lights work? How do they know when to turn red and green? Why does green mean go and red mean stop? Why are cars able to go faster than they are allowed to go with the speed limit? Why do we drive on the right side of the road in the United States? Why are some roads bigger than others? Answers to your traffic questions with Mike Knodler, professor and director of the Transportation Center at the University of Massachusetts.

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Are Komodo dragons really dragons? Apr 24, 2026

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Can’t get enough of lizards? We’re back with a bonus episode answering more of your lizard questions with Adam Clause of the San Diego Natural History Museum. This week, chameleons, Komodo dragons, iguanas, monitor lizards and tuatara! How do chameleons change color? Why are Komodo dragons called dragons and are they endangered? How many babies do monitor lizards have? Why do iguanas have dewlaps? (And what’s a dewlap?!) Why are iguanas green? What is a tuatara?

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How do lizards grow their tails back? Apr 17, 2026

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Deep in the basement of the San Diego Natural History Museum, there are thousands of jars filled with preserved reptiles and amphibians. In this episode, But Why takes a tour with collections manager Adam Clause to answer your questions about lizards! How do lizards climb walls? Do lizards hibernate? Do they sleep? Why are lizards cold blooded? How do lizards grow back their tails if they break off? Why do geckos lick their eyes? Do lizards poop and pee?

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But Why turns 10! Apr 03, 2026

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But Why turns ten years old on April 1, 2026! To celebrate this milestone, we’re listening back to our very first episode. We’ve got owls and turtles and bears. Naturalist Mary Holland gets into the details about hibernation–including the questions you may not even have thought to ask, like what about poop? Then we meet a barred owl named Chapin, who is cared for by Outreach for Earth Stewardship in Shelburne, Vermont.

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Download and print Hibernating Bear and "Om Nom" Bear, coloring pages by Lauren Turmel.

What's it like to be a Kid Governor? Mar 20, 2026

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In the United States, voters in each state elect a governor every two or four year terms. The governor is the top official in the state government. But did you know five U.S. states also elect a Kid Governor? It’s a part of a civics education program that helps kids learn about democracy while focusing on a community issue that’s important to them. But Why recently hosted Vermont’s Kid Governor and cabinet for a kid press conference and in this episode, we’ll listen in on that event. Plus we’ll hear from kid governors in Connecticut and Nebraska about what they hope to accomplish in their terms.

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How do we know life is not a dream? Mar 06, 2026

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Some questions are so big they’re existential, meaning that they get right to the heart of human existence. These are also sometimes called philosophical questions, so for this episode we called up a professor of philosophy, Scott Hershovitz, who teaches at the University of Michigan. He’s also written a book about how adults and kids can have philosophical discussions together. It’s called Nasty, Brutish and Short: Adventures in Philosophy with My Kids.

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How did bird dinosaurs survive the meteor? Feb 20, 2026

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Why did the dinosaurs go extinct? Many of you have learned about the meteorite that scientists say hit the earth 66 million years ago and killed off many dinosaur species. But some dinosaurs survived, and the birds you see flying around today are their direct descendants! In this episode we trace the connection between modern birds and prehistoric dinosaurs. Other questions include:

Were any dinosaurs mammals?
How did bird dinosaurs survive?
Are crocodiles related to dinosaurs?
Did dinosaurs have feathers? How do we know?
Did all dinosaurs lay eggs?

Our guest is Dr. Emily Bamforth, curator of the Philip J. Currie Dinosaur Museum in Alberta, Canada.

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Why are brothers and sisters so annoying? Feb 06, 2026

Show notes

Why are brothers and sisters so annoying? Why do siblings often look a lot alike? Why do siblings fight? Can your sister be your best friend? Why do we fight with our siblings even if we love them? But Why takes a look at the sibling relationship with Susan Dominus, author of The Family Dynamic.

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