Dame Jane Goodall, the world's preeminent chimpanzee expert, died of natural causes.

The Bering Land Bridge likely didn't emerge until around 35,000 years ago, much later than was previously thought. This narrows the window of when humans could have crossed over to North America.

New research finds the disappearance of glaciers in the Sierra Nevada will be unprecedented in the human history of North America.

In a proof-of-concept experiment, scientists demonstrated that you can create and fertilize human eggs in the lab using sperm, genes from skin cells, and the "shells" of existing egg cells.

Researchers have discovered a mysterious ancient lizard with snake-like teeth in Scotland. Breugnathair elgolensis is one of the oldest relatively complete lizard fossils and helps scientists better understand the origins of snakes in the Jurassic period.