Another edition of Ask Sam, where Sam answers listener questions about the natural world. This time, questions about hugging trees, bumpy roads, objects stuck on power lines, and epic hummingbird battles.

Featuring special guests, Maddie Sofia, host of NPR's Short Wave, and Kendra Pierre-Louis, climate journalist with Gimlet's How to Save a Planet.

Also featuring Ferris Jabr, Stephen Morris, Greg Bruton, and Anusha Shankar.

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Ask Sam: Do Hummingbirds Sleep and Other Questions