LifeStone flakes made by monkeys cast doubt on ancient human 'tools' When macaques use stones to crack nuts, they accidentally create flakes that look like early human artefacts, raising questions about whether such objects were made deliberately News
HumansMilk may have fuelled a growth spurt in ancient Europeans An analysis of ancient human skeletons finds that an increase in size and weight in some regions coincided with the rise of lactose tolerance News