We may share a common ancestor with chimpanzees, but somewhere along the evolutionary line to us, our brains took a major detour. New research suggests that chimpanzees can rationally weigh evidence, a trait that used to be thought as uniquely human.
PLUS:
- Why penguin-eating pumas live closer together in Patagonia
- Ants sacrifice the strength of individual workers for quantity
- Mapping the landmass beneath Antarctica's massive ice sheet
- How deep sea ocean environments affect fish body shape
