First known hominid

In December 2000, scientists in the Kenya Palaeontology Expedition announced their discovery of 6 million-year-old fossilised remains of early human ancestors. Orrorin tugenensis walked on two legs and was about the size of an adult female chimp.

At six million years old, there is a chance that O. tugenensis lived around the time that the ancestors of humans split from the ancestors of apes – this creature may well be one of the missing links between man and great ape.