THIS DAY IN SCIENCE: Bali Tiger Is Extinct in 1937

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Why Do Men Have Nipples?

Why Do Men Have Nipples?

If men can’t nurse, then why do they have nipples? The answer has less to do with evolution and more to do with your personal development as a teeny tiny embryo. Short version: We’re all girls — at least at first. Hank explains! Like SciShow? Want to...
Performance Enhancing Drugs

Performance Enhancing Drugs

You’ve heard about them, but do you how they work? Or why they suck? Hank explains the science behind performance enhancers, including steroids, blood doping, and that stuff supposedly made out of deer antlers. You’ll never look at cheating the same way...
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