HumansThe untold story of our remarkable hands and how they made us human The evolution of human hands is one of the most important – and overlooked – stories of our origin. Now, new fossil evidence is revealing their pivotal role Features
LifeOctopuses prompt rethink of why animals evolve big brains A popular idea suggests a link between big brains and a rich social life, but octopuses don't fit the pattern, which suggests something else is going on News