This Diver Is Cradling a 12,000-Year-Old Skull in an Underwater Cave

Inside a cave so deep and dark it's called Hoyo Negro, or Spanish for "black hole," divers are transporting a 12,000-year-old skull for 3D scanning. The skull belongs to one of the oldest and most complete skeletons ever found in the Americas. Lucky for us, the expedition was documented with an entire set of stunning… » 5/15/14 6:00pm 5/15/14 6:00pm

15 of the Weirdest Images in the British Library’s New Digital Trove

Digging through the archives of old libraries is a blast. Depending on the library, you'll find everything from dated architectural drawings to snippets of old children's books. You can just imagine the treasures to be found in the British Library's ancient archive. And, now, you don't even have to get your fingers… » 12/17/13 9:00am 12/17/13 9:00am

8 Incredible Facts You May Not Know About Human Evolution

Homo sapiens evolved about 200-150,000 years ago in Africa, but our story as a species stretches back much further than that with early human ancestors. And the evolution of Homo sapiens is itself a tangled tale, full of unanswered questions and gothic family melodrama. Here are a few facts you may not know about the… » 11/15/13 6:16pm 11/15/13 6:16pm

The Mysterious Tool-Making Culture Shared by Crows and Humans

Many animal species use tools, from insects, elephants and sea urchins to apes, badgers and octopuses, but there are only two animals who make hooks to catch food: humans and crows. Why we both do this is a mystery — and unraveling it could explain the reasons why tool use evolved in the first place. » 11/07/13 4:59pm 11/07/13 4:59pm

Middle Earth: Why We Need to Turn Our Map on Its Side

Though he never actually crossed it, the Greek mathematician Pythagoras is sometimes credited with having first conceived of the Equator, calculating its location on the Earth’s sphere more than four centuries before the birth of Christ. Aristotle, who never stepped over it either and knew nothing about the landscape… » 5/23/13 12:40pm 5/23/13 12:40pm

Tough Times Are Written in Your DNA; Good Thing You Can Erase Them

You've seen the reports that individuals with a lower economic and social status suffer from poor health more often than folks in higher tax brackets. Now, thanks to a multi-year study of rhesus macaques monkeys, researchers have found genetic changes caused by stressful environments are likely contributing to that… » 4/09/12 3:01pm 4/09/12 3:01pm