Homo habilis (Latin: "handy man") is one of the early ancestors of modern man who used primitive stone tools. Their remains have been found in the Olduvai Gorge in Tanzania. They are believed to be about 2 million years old. The flat face and large molars of the "Homo habilis" resemble the Australopithecus lineage. The brain size of the "Homo habilis" is about 700 cc (larger than the Australopithecus). An "apelike" (long arms and a small body) body structure was characteristic of the "Homo habilis". They are believed to have been about 1.3 metres tall, and weigh about 37 kilograms. There is still a lot of argument between scientists about the species. They can not all agree on the characteristics, or whether it is even a separate species at all.