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The caduceus is used as a medical logo, but that’s not its original meaning.

This ancient symbol, also called the Staff of Hermes, depicts two snakes intertwining around a stick that is capped by wings. It’s used as a medical logo, but for almost all its roughly 5000-year history, the caduceus had nothing to do with medicine. 

Nick Keppler
















Stenciled human hands in a cave near Rio Pinturas, Argentina, dating from the last ice age.

We break down some common myths about our early human ancestors—and what makes our species, ‘Homo sapiens,’ so different from them.

Kat Long


Grab your magnifying glass.

We give you an obscure word with four definitions—one correct, three made up. Can you identify the correct one?

Ellen Gutoskey




This cat is definitely hatching a plan to get someone to open the door.

You may have no choice but to close a door—much to your cat’s disappointment. Here are some ways you can make this undesirable situation slightly more tolerable. 

Alexia Kontolemos