The way our hands look today has been shaped by our behaviour over millions of years, say scientists.
The disappearance of elephants 400,000 years ago led to the appearance of modern humans in the Middle East.
The researchers examined the dental microwear of teeth from several specimens of Homo habilis found at Olduvai Gorge between 1995 and 2007 excavated by a team from Rutgers University led by Robert J. Blumenschine.
Day in Pics: 20th October
Showbiz World - October 20, 2014
Dia Mirza-Sahil Sangha Wedding Pictures