It seems that Australopithecus afarensis-- the early hominin ... Using the shape of Lucy’s bones and data on the muscular ...

To get a picture of how Lucy's species, Australopithecus afarensis, moved, scientists compare fossils to the bones of modern humans, as well as to the anatomy of "knuckle-walking" primates like ...

Lucy and other members of her species, Australopithecus afarensis, lived between 3.9 and ... (Any remnant of the past, not just bones, can be considered a fossil.) 3.6 million years ago, a volcano ...