Two innovations in the pelvis gave our ancestors the ability to walk upright
The upper part of the human pelvis, known as the ilium, underwent two key structural innovations during evolution that made bipedalism possible, according to a study published today in Nature . This finding offers new clues about how one of the most defining characteristics of our species originated: walking upright on two legs.
Source: The Objective
Author: Antonio Villarreal
Link: Full Text