The other day my cat Olive (seen here preparing a drink) was chasing a fly around for about 1/2 hour, and when he finally caught it, he was panting like crazy. As I sit here now sweating in my living room I was wondering, naturally, if monkeys and other primates sweat or pant to cool themselves off. Being so closely related, I figure they must sweat, but that must be less effective since they’re covered in hair.
Anyway, I looked it up, and found this cool Infrared Zoo page at Cal Tech that says:
To stay cool, warm-blooded animals sweat or pant to loose heat by water evaporation. They can also cool off by moving into a shaded area or by getting wet. Only mammals can sweat. Primates, such as humans, apes and monkey, have sweat glands all over their bodies. Dogs and cats have sweat glands only on their feet. Whales are mammals who have no sweat glands, but then since they live in the water, they don’t really need them. Large mammals can have difficulty cooling down if they get overheated. This is why elephants, for example, have large, thin ears which loose heat quickly.
So I guess they do sweat. Now you know.
More interesting, they have tons of IR pictures of warm and cold blooded animals.

