Millions of years ago, early humans lived in a world where survival was anything but guaranteed. Wild predators, unpredictable weather, and deadly diseases constantly threatened their existence. But ...

“For over a hundred years, it was hypothesized that our ancestors lived in grassland savannahs and that this major ecosystem change drove human evolution, including the origins of bipedalism and ...

A stunning fossil discovery in Ethiopia shows that early Homo and a previously unknown Australopithecus species lived together around 2.6 to 2.8 million years ago. The find overturns the classic ...

(CNN) — Mosquitoes haven’t always had a taste for human blood — partly because the tiny yet dangerous insects have been around a lot longer than humans. Pinpointing when mosquitoes shifted their ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Paleo. Carnivore. Caveman. Whatever term you prefer to ...

A female Anopheles quadrimaculatus mosquito takes a blood meal from a host. For millennia, this mosquito has spread malaria. Researchers now think that these mosquitoes — and the disease they carry — ...

Neanderthals used sophisticated techniques with a stone drill to treat a painful dental cavity, according to new research.

There are 8 billion of us alive today, give or take a few hundred million. We crowd cities, cross oceans in mere hours, and ...