The bone is additional evidence that Australopithecus afarensis, an ancient human ancestor who lived around 3 million years ago, spent most of its time walking, instead of climbing trees like chimps.

Lucy lived in a wide range of habitats from northern Ethiopia to northern Kenya. Researchers now believe she wasn't the only australopithecine species there.

A sculptor's rendering of "Lucy," Australopithecus afarensis, at the Houston Museum of Natural Science on August 28, 2007. Dave Einsel / Getty Images About 3.2 million years ago, among the ...

Lucy, our 3.2 million-year-old ancestor of the species Australopithecus afarensis, may not have won gold in the Olympics – but new evidence suggests she was able to run upright. According to ...

One of the most famous fossils in human evolutionary history is known as "Lucy," who belonged to an extinct species called Australopithecus afarensis—an early relative of Homo sapiens who was ...

Lucy walked on her own two feet. Scientists weren’t expecting that. We take a look back at the discovery of ‘Australopithecus afarensis’ 50 years ago. Donald Johanson really had no business ...

Lucy may be the best-known prehuman fossil in the world. But other famous fossils have given us important insight into our evolutionary history.

Studying fossils of Australopithecus afarensis can provide insight into the evolution of bipedalism, or walking upright, and when it emerged in early human ancestors.

Other A. afarensis fossils, such as those of Kadanuumuu, show male australopithecines were only slightly larger than females, which, in primates, usually corresponds to more monogamous pairings.

Given the presumed age, the makers were likely Australopithecus afarensis. An image of a model based on Lucy and other Australopithecus afarensis skeleton fossils found in East Africa in 1974.

Most scholars agree these tracks were made by Australopithecus afarensis—Lucy’s species—fossils of which have been found at Laetoli. The Site G tracks were decidedly different from the ones ...

A collection of 3-million-year-old bones unearthed 50 years ago in Ethiopia changed our understanding of human origins. ... Australopithecus. afarensis (“Lucy”) AUSTRALOPITHECUS. GROUP. 4 . 5 ...