But Why

Jessica Hyde / istock

Are ghosts real? Why do some cultures believe in fairies and gnomes and some don't? We'll learn about how beliefs in ghosts vary in different parts of the world with Justin McDaniel of University of Pennsylvania. Then we're off to Iceland to learn about magical creatures with Terry Gunnell.

Jane Lindholm / VPR

How do birds fly? Why do they flock? How do they not get shocked when they sit on telephone wires? The Bird Diva has our answers to all of your questions about our feathered friends. And why do chickens lay different colored eggs? We visit the hen house at Shelburne Farms to find out.

Sean Pavone / istock

Who invented the president? Which country had the first president? We answer presidential questions historical in nature with author Kenneth C. Davis. Also in the episode: why do leaves change color in the fall?

Jane Lindholm / VPR

We're heading to the coast of Maine to learn a little bit about why the sea is salty, how mussels get their shells and how model ships get in those glass bottles.

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7-year-old Kala wants to know why we say soccer in the United States, when the rest of the world calls the game "football." In this episode we hear from people who make their living in the game, professional players, coaches and commentators.

Mehgan Murphy / Smithsonian

How long does it take for baby animals to grow up? In this episode, we're learning about cheetahs and horses with two questions from siblings in Australia.

Jane Lindholm / VPR

This episode is all about bugs! We've gotten a lot of questions from you about insects and other critters. So we're tackling them with the help of Jessica Honaker and Kristie Reddick, otherwise known as the Bug Chicks.

courtesy, Michal Cervany

It's all about bikes in this episode of But Why? Why bicycles can stay up when you're riding them, but fall over when stopped. Olympian Lea Davison tells how to get started when riding, and we learn how a bike chain moves a wheel.

Jane Lindholm / VPR

Seven-year old Sawyer wants to know: how does an engine work? We learn about chainsaws from Ashleigh Belrose, an instructor the Center for Technology in Essex, Vermont.

weerapatkiatdumrong / istock

Families grow and change. What does that feel like? We asked kids to tell us about their families, and we speak with author Amy Bloom about how love is not something that needs to be divided up, like a pie, but can expand and multiply.

Melody Bodette / VPR

Why is the sky blue? We get an answer from a science writer for NASA's Space Place. And what are Saturn's rings? Carolyn Porco of the Cassini Imaging Team explains.