Länk - Människans förfader gick aldrig på knogarna
Study at the University of Liverpool, in collaboration with the University of Birmingham, into the behaviour of the orang-utan, has now suggests that knuckle-walking evolved quite recently in chimpanzees and gorillas, as a way of moving on the forest floor, whilst walking on two legs – assisted by the support of tree branches – is an older trait and evolved from tree walking. The study suggests that walking on two legs was always a feature of great-ape behaviour and human ancestors never passed through a knuckle-walking phase.
Läs mer: Human ancestors may have walked upright in the trees | Science Blog