LifeChimpanzee group's violent rupture hints at evolutionary roots of war Researchers who observed a murderous conflict unfolding in a once-unified group of wild chimpanzees say there are parallels with civil wars in human societies News
HumansThe first apes to walk upright may have evolved in Europe A single femur found in Bulgaria appears to represent an ape or early hominin that walked on two legs before any known African hominin, but the evidence is far from conclusive News