Why does scratching your head feel so damn good?

A release of serotonin, dead skin cells, and the…

Biology

Why Can’t Two Women Have a Baby?

“They each provide an X chromosome for a…

Chia — a tiny seed with a long history

Ancient Aztecs knew the important these tiny seeds centuries…

Why Hasn’t Evolution Fixed Our Weird, Broken Eyes?

After you read this, you’ll wish you had the eyes…

What in the World is “Thick Water”?

Should you drink water that you need to chew? Are there health…

Would You Explode in Outer Space?

As space tourism becomes more popular, here’s your safety briefing

Soon, We Could All Be Universal Donors

A, B, AB, or O? A scientific breakthrough forty years in the…

Take Heart! Your Future Baldness May Not Be Guaranteed!

Genetics tells a more complex story than “bald…

GENE DRIVES

How the United States Won the War on the Screwworm Fly

A secret war, fought…

The Rise of Australia’s Cannibal Toads

When your own species becomes your worst enemy.