Human newborns arrive remarkably underdeveloped. The reason lies in a deep evolutionary trade-off between big brains, bipedalism and the limits of motherhood.

The Indigenous peoples of the Bolivian highlands are survivors. For thousands of years they have lived at altitudes of more than two miles, where oxygen is about 35 percent lower than at sea level.

The evolution of human hands is one of the most important – and overlooked – stories of our origin. Now, new fossil evidence ...

A new Yale study provides a fuller picture of the genetic changes that shaped the evolution of the human brain, and how the process differed from the evolution of chimpanzees. For the study, published ...

Add Yahoo as a preferred source to see more of our stories on Google. A reconstruction of the crushed skull labelled Yunxian 2, which has features that are closer to species thought to have existed ...

This has been quite the wild year in human evolution stories. Our relatives, living and extinct, got a lot of attention—from new developments in ape cognition to an expanded perspective of a ...

The evolution of the human species is marked by an increase in brain size. Now new research suggests that could be partly ...

Humans' exposure to high temperature burn injuries may have played an important role in our evolutionary development, shaping ...

A 3.4M-year-old set of foot bones from Ethiopia is forcing paleoanthropologists to redraw one of the most familiar diagrams ...