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Ancient human ancestor Lucy was not alone — she lived alongside at least 4 other proto-human species, emerging research suggests
afarensis fossil (AL 288-1), nicknamed "Lucy ... changed the picture of hominin diversity. At 3.5 million years old, this fossil of a species that would be named Australopithecus bahrelghazali ...
PBS8y
Riddle of the Bones
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 ...