LifeMeet your maker: Homing in on the ancestor of all life What was the last shared ancestor of all life like? How did it make its living? A radical new answer could explain some of the most mysterious features of life Features
EarthLoving the alien: A defence of non-native species Introduced species generally get a bad press – but not all alien invaders are villains, says Ken Thompson in Where Do Camels Belong?CultureLab