15 points
It’s actually interesting, the evolutionary trait that gave us the edge is actually sweating. Only humans, primates, horses and hippos really have the ability to sweat sufficiently to cool themselves. Canines and felines can only sweat through their paws, not enough to cool themselves. They can pant, but not enough for duration running. Primitive humans literally ran down their prey until the prey would overheat.
8 points
