LifeAncient DNA suggests dogs split from wolves 40,000 years ago An extinct wolf's DNA has pushed back the origin of dogs by more than 10,000 years, but when humans domesticated them is still lost in the mists of time ¿ìè¶ÌÊÓÆµ
LifeCapuchin monkeys rival chimps as highly skilled nut-crackers Monkeys observed in Brazil can use tools, but they also know it doesn't take a sledgehammer to crack a nut – instead they exercise judgement and restraint ¿ìè¶ÌÊÓÆµ