HumansEarliest human ancestors may have swung on branches like chimps Our distant ancestors may have swung below tree branches and knuckle-walked like a chimpanzee – challenging recent thinking that the earliest hominins did neither 51¶¯Âþ
LifeNew species are more likely to evolve in areas where few already exist It has long been thought that new species are most likely to evolve in biodiversity hotspots like the Amazon rainforest, but a genetic analysis of birds suggests that extreme environments where few species exist help drive evolution 51¶¯Âþ