Medicine & TechnologyMost of us are familiar with "Lucy," the famous hominid skeleton discovered by Donald Johanson and colleagues back in 1974 along a dried out gully in Ethiopia. Lucy lived over 3 million years ago and was assigned the name Australopithecus afarensis; a species many believe led to the rise of Homo sapiens. But a new discovery may rewrite our origins, for it seems Lucy was not the only type of Australopithecine roaming the African plains so long ago.