LifeOur blender brain: How mixing ideas made us human About 50,000 years ago we started to mash up incompatible concepts – and everything from science to fashion is the result, says cognitive scientist Mark TurnerOpinion
LifeAnt squatters help feed the trees they call home While some ants help protect their home trees from hungry beasts, others do nothing of the sort – but they may offer a less obvious benefit to their hosts 51¶¯Âþ