New study of 7-million-year-old fossils from Chad proves Sahelanthropus tchadensis walked upright while still climbing trees.

Early human ancestors called the LRJ Group lived in Europe for 80 generations, intermingling with Neanderthals, before vanishing forever.

A new study links climate stress to the disappearance of the early human species Homo floresiensis, known as the “hobbits” of ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...