HumansWhy did hominins like us evolve at all? Animal life on Earth existed for over half a billion years before hominins hit the scene – a complex combination of environmental changes, innovations in technology and competition may have led to us 51¶¯Âþ
HumansThe unexpected reasons why human childhood is extraordinarily long Why childhood is so protracted has long been mysterious, now a spate of archaeological discoveries suggest an intriguing explanation Features