How do people whistle? How does whistling make a sound? Why does your tongue change a whistle higher or lower? Can you get a trophy for whistling? Can people with laryngitis whistle? Get ready, we learn all about whistling with musician and champion whistler Emily Eagen and musician Yuki Takeda. And who whistles our theme song? We'll hear from musician Luke Reynolds, and a kid whistling chorus from our listeners!

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Are all cats afraid of water? Do wild cats bury their poop? How are the cats that live in your house related to lions and tigers roaming in the wild? We take a walk in the woods with wildlife biologist Emily Carollo. She works with a conservation and research organization called Panthera that’s dedicated to helping all 40 species of wild cats in the world. Why do cats live in different habitats? What do cats eat? Why do they chase mice? Why do cats' eyes glow in the dark? Why do some cats roar and some purr? Do cats have their own language? 

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If you could be a superhero, what would you want your superpower to be–and what would you call yourself? That’s what we asked kids for this special end-of-year episode, and we got some amazing answers! Some kids want to fly. Some want to go back in time. One wants to be able to draw everything perfectly the first time. And a surprising number of kids want a super ability to do math!

Stories about humans with special abilities have been around for as long as humans have been telling stories. But the word superhero is only about 120 years old. The first known use of the word was in 1899, but the term became more mainstream in 1930s comic books and movies. Now, superheroes are all over the pages of books and both the small and big screen. Give this episode a listen and think about what YOUR superpower might be!

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Who decides what robots look like? How do robots work and move? How are they controlled? And are robots alive? We tackle all your robot questions in this episode, and we’re taking a field trip to a local factory that uses hundreds of robots to help humans do their jobs. GlobalFoundries, in Essex Junction, Vermont makes microchips that go in all kinds of electronics. In fact, if your adults have a smartphone, more than likely it has a chip made at this very facility. Engineers Adrien Plouffe and Lucy White work with the robots at GlobalFoundries and answer your questions about robots, including: Why are robots made of metal? Why do people like robots? Do robots cry?

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Why can’t animals talk to us? Are humans the only animals that can talk? Can different species of animals communicate with each other? We learn about animal communication with Arik Kershenbaum, author of Why Animals Talk: The New Science of Animal Communication. He studies wolves, gibbons, dolphins and hyrax to learn how they communicate. Also in this episode: why are parrots able to speak human words but other birds can’t? 

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Why do we have to poop? Why does fiber make you poop? Why is poop brown? Why does it smell so bad? Why do farts smell bad, too? Yup, we’re going there! In this episode, Mary Roach, author of Gulp: Adventures on the Alimentary Canal, answers your questions about those things that we’re told not to talk about in polite company: poop and farts. We learn how astronauts use the bathroom in space and how many germs are in one ounce of poop.

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Why do we worry and how can we deal with it? Why do we get anxious? Where does anxiety come from? Anxiety or worry is a hard feeling to overcome, but it’s a universal human emotion. In this episode, we explore anxiety with clinical psychologist Eileen Kennedy-Moore, also known as Dr. Friendtastic. She helps us understand why moderate anxiety is useful and necessary. But too much worry can prevent you from learning new things or doing activities that could be fun. And she has some tips for how to overcome anxious feelings.

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Election Day in the United States is November 5 this year and election officials across the country are already hard at work setting up polling places and processing mail in ballots. Even if you’re not old enough to vote, you can be part of the process. You can watch voting machines be tested, observe the polling places on Election Day, or even watch votes be counted once the polls close. (Sometimes there are livestreams so you can watch from the comfort of your own home!) For this episode on how voting works, But Why stopped by the South Burlington City Hall on the day vote tabulators were being prepared. Plus we meet Vermont’s top election official, Secretary of State Sarah Copeland Hanzas. Have you asked an adult to take you to the polls yet? 

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What is voting? Why (and how) do people vote? Why can’t kids vote? Why are there red and blue states (not to mention donkeys and elephants representing political parties)? How can someone win the most votes but still lose the presidential election? We’re answering kid questions about elections with Bridgett King, a political scientist at the University of Kentucky. 

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A new food-focused kids podcast is here. It’s called ChopChop and it’s part of a non-profit committed to getting kids and families to cook and eat meals together. Explore tasty recipes on their website! They also publish a quarterly magazine in English and Spanish (a good way to practice a second language). 

We contributed to their very first episode and we have to say, it’s the corniest episode you’re ever going to listen to! Our contribution was the science of how popcorn pops. 

We hope you gain some kernels of knowledge from this episode! We had an ear full.