One theory, as the person above you mentioned, is that humans evolved for persistence hunting in hot climates, driving our prey animals to (heat) exhaustion. Most furry mammals pant to regulate their body temperature Other animals, like ectotherms — lizards, amphibians, and insects — have other behaviors that help keep them cool Humans, however, are in a category of our own We are the only mammal that relies on secreting water onto the surface of. Humans aren’t the only animals that sweat
Many mammals —among them, dogs, cats, and rats—perspire through the footpads on their paws Chimpanzees, macaques, and other primates are covered. Humans and some other mammals evolved to sweat extensively as a means of staying cool in hot climates Other animals, like reptiles, developed different methods, such as basking in the sun or seeking shade, to manage their body temperature based on their environments. Sweating and thermoregulation in the evolution of homo sapiens Humans aren’t the only primates who use eccrine sweating to cool off
