The Case of the Sleeping Trees (Interactive E...

A special “tickle attack” Mailbag edition of Tumble! We’re tackling your questions about whether animals can be tickled, and why we laugh when we’re tickled. David Leavens, a professor of psychology, helps us break down the not-so-silly science of tickling. Plus, a brand NEW SONG ...  Show more

Do trees think? That’s what our listener Alden wants to know. He has an idea that scientists might study mushroom roots to find out if trees are sending messages. Is that true? And if so, what do trees have to say?!We travel deep into the forest with a young soil scientist named ...  Show more

Did you know? We are back with another episode of Sleep Tight Science and in this episode we are going to learn about trees. Have you ever wondered about how trees grow? How can you tell how old they are? or Why are trees so important? In this episode we are going to talk about a ...  Show more

This is a preview episode. Get the full episode, and many more, ad free, on our supporter's feed: https://getsleepy.com/support. The Tree of Answers Tonight, we have a story sprinkled with intrigue. A young boy, named Charlie, seeks the answers to life's mysteries. But a magica ...  Show more

Happy Earth Week! What has 3 trillion trees and one kid named after a birch tree?

Andrew & Polly's family tree has (at least!) 3 tree experts who give us just the tiniest glimpse into the wonder of all things arboreal. Thanks to Bay Area-based <a href='https://www. ...

We love listener mail! You've sent us some amazing notes. Some made us laugh, some made us cry, and some made us say—hey, that’s a great question! We should answer it. So that’s what we did. This week, we dig into some of your questions about trees. What’s up with that tree-plant ...  Show more