On this special episode, we're going to listen to a story about how turkeys used to get from farms in Vermont to markets and dinner tables far away in Boston, a distance of a couple hundred miles. This was before refrigerated trucks. So how do you think they did it?

Why do we like to eat certain foods? Why do some people like to eat spicy food and some people don't like to eat vegetables? Why does pineapple hurt your mouth when you eat too much of it? Why do we taste things and how? Why do different foods taste different? Do animals have the same taste buds as people? Download our learning guides: PDF | Google Slides | Transcript

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.

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.

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?

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. Download our learning guides: PDF | Google Slide | Transcript | Ship In Bottle Plans

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.

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.

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. Download our learning guides: PDF | Google Slide | Transcript

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.