HumansNeanderthals may have powered their bigger bodies by breathing deeper The Neanderthal rib cage was about the same size as ours but a different shape, which suggests the extinct humans could take in more air with each breath News
HumansYou can recognise around 5000 faces, from family to celebrities For much of human evolution our ancestors may have encountered only a few hundred people in their lives – but we can each recall about 5000 distinct faces News