It’s considered to be one of the most decisive steps in human evolution. Now, scientists believe they have pinpointed when our ancestors made the transition from walking on all fours to standing on ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A handful of teeth found at ...

This meant Lucy was a hominid—only humans and our close relatives in the human family habitually walk upright on the ground. A member of the species Australopithecus afarensis, which lived from 3.9 ...

The oldest distinguishing feature between humans and our ape cousins is our ability to walk on two legs—a trait known as bipedalism. Among mammals, only humans and our ancestors perform this atypical ...

Add Yahoo as a preferred source to see more of our stories on Google. Archaeologists uncovered teeth from an ancient human ancestor in Ethiopia's Afar Region. - Amy Rector/Virginia Commonwealth ...

She is not the oldest member of the extended human family, but she is by far the most complete of the early hominids; most of her skull and teeth as well as extremely rare bones of her pelvis, hands, ...