Paleoanthropologist Ronald Clarke introduces the skull of “Little Foot”, the oldest hominid skeleton ever found, at a laboratory at the University of the Witwatersrand in Johannesburg on Friday. The photos show the hominid fossil dating back more than 3 million years which was discovered by Clarke who spoke in a live stream video at the unveiling of “Little Foot” which was watched by BRICS leaders on Thursday during the 10th BRICS Summit in Johannesburg. (Photos: Li Hao/GT)