BIOLOGY

Your gut feeling isn’t just a metaphor. Science reveals how intuition works—and when you should listen to it.

Learn the science behind the sensation of butterflies in the stomach and what it reveals about your body.

The surprising science that explains everything you need to know about food comas.

Aging might seem scary, but you probably don’t have all of the facts.

A fishing group thought they caught a giant goldfish. What they hooked was actually much weirder.

The ♂and ♀ symbols initially had nothing to do with representing human sex or gender.

Charles Davenport’s Eugenics Record Office collected data on thousands of Americans, hoping to support a pseudoscientific theory that would create a more perfect human race. It led to unspeakable tragedy.

The newly identified Atlantic manta ray is officially a distinct species.

From the long legs of the jerboa to basically everything about the duck-billed platypus, evolution has taken some weird turns.

The Carnarvon flapjack octopus flattens its body like a pancake and uses its Dumbo-like fins to swim.

A rare grasshopper once believed to be extinct has been spotted for the first time since 1980—but habitat loss may threaten its future.

There’s a right and a wrong way to wipe your butt after all. But with these expert-approved tips, you’ll be sitting pretty in more ways than one.