In their 3D simulations of chimpanzee birth ... infants is usually explained by a trade-off between needing to walk upright — which requires a shorter and wider pelvis with a birth canal ...

When the parts were assembled, her arms resembled chimpanzee arms and her skull suggested a chimpanzee’s skull. But her ...

The American researcher talks to EL PAÍS about how walking upright was the starting point for our brain enlargement and our ...

The picture of human evolution has changed repeatedly and dramatically over the past half century, shaped by waves of new ...

A collection of 3-million-year-old bones unearthed 50 years ago in Ethiopia changed our understanding of human origins.

In pursuit of knowledge, the evolution of humanity ranks with the origins of life and the universe. And yet, except when an ...

Fifty years after a fossil skeleton of Australopithecus afarensis was unearthed in Ethiopia, we know so much more about how ...

Newly discovered fossil footprints indicate two different ancient human relatives walked upright around a muddy lake in Kenya ...