The fossilised bones from a 3.4 million-year-old human ancestor have been found in Africa.
Scientists now believe homo erectus and modern humans never co-existed in the distant past.
An ancient human ancestor known as nutcracker man may have preferred to munch on grass.
A fossil of the 50-million-year-old Algeripithecus long believed to be the strongest evidence that apes and humans origi...