For a long time, scientists felt confident in their understanding of the timeline of human evolution. But a recent discovery ...

One set of prints is clearly larger than the other ... walked upright" makes it a celebrity species in the story of human evolution. Lucy's pelvis hints that she walked upright on two legs.

Until then, the oldest known footprints of human ancestors were tens of thousands ... Birds and mammals left a great number of prints, but, spectacularly, so did a pair of hominids, one large ...

“It’s an important part of understanding how evolution works to go down to the smallest scale of evolutionary change, namely, what’s happening in one generation.” The idea for the study came about a ...