An unprecedented discovery reveals how the human pelvis transformed into the womb: this is how the evolution that made us walk upright began.

For millions of years, our ancestors walked on all fours, as chimpanzees, gorillas, and other primates still do today. But at some point in the distant past, something changed: a silent but radical anatomical transformation that forever separated us from the rest of the animal kingdom. We walked upright. And this ability, as commonplace as it is crucial, has just received a clearer scientific explanation than ever before.

Source: Muy Interesante 

Author: Christian Pérez

Link: Full Text