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anatomy of a laugh

Why does laughing feel so stinkin’ good?

By Sara Chodosh

Medical physicist Joanna Harper

The science behind sex, gender, and athletic competition is still pretty shaky

By Britni de la Cretaz

wooden derby cars

Meet the dads who can’t quit pinewood derby racing—even after their kids are over it

By Andrew Zaleski

Popular Science Summer issue

PopSci’s Summer issue is available now—for everyone

By Corinne Iozzio

We don’t know what a happy chicken looks like, and that’s a big problem

We don’t know what a happy chicken looks like, and that’s a big problem

By Mary Baxter/The Conversation

This Company Wants To Put Your Children To Work

This Company Wants To Put Your Children To Work

Why Do Animals Love To Play In The Snow?

Why Do Animals Love To Play In The Snow?

State of Play: The World’s Most Amazing Playgrounds

State of Play: The World’s Most Amazing Playgrounds

By Geoff Manaugh