Fragmented part of a lower mandible (which still holds thirteen teeth, as well as unerupted wisdom teeth). (Click on image to view larger.)
Between 1960 and 1963 a team led by scientists Louis and Mary Leakey uncovered the fossilized remains of a unique early human at Olduvai Gorge in Tanzania. The type specimen, OH 7, found by Jonathan Leakey, was nicknamed "Jonny's child". Because this early human had a combination of features different from those seen in Australopithecus, Louis Leakey, South African scientist Philip Tobias, and British scientist John Napier called these remains a new species— Homo habilis, meaning ‘handy man', as they suspected that this slightly larger-brained early human made the thousands of stone tools found at Olduvai Gorge.