ScienceDaily: Fossils & Ruins News

Researchers suggest a change in climate is the likely cause of the mysterious disappearance of ancient lions and bears from parts of North America for a thousand years or more prior to the last Ice Age.

Among our closest living relatives -- the great apes -- we humans are unique: We have larger brains, reproduce more quickly and have longer life spans. These traits are obviously valuable, but the extra energy required to sustain them is quite significant. So how did we manage to afford them?

Radiant and flavorful, lychees were so beloved that they were domesticated not just once in ancient times, but independently in two different regions of China, a study finds.