Medicine & TechnologyA study of tooth wear in wild Japanese macaques is shown significant links with the survey of human evolution. See how researchers describe cultural changes.
Most 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.