Sweating or perspiration is a natural way for the body to regulate its temperature. Humans have sweat glands in many parts of the body. What about animals? Sweat glands are found in most mammals. But they do not produce large amounts of sweat (exception being horse). For instance, dogs and cats produce small amounts of sweat through their paws. The overall distribution of sweat glands varies among primates – while the rhesus monkey has them on the chest, some macaque species and baboons have them over the entire body. But they do not sweat as much as humans, as their fur serves as the temperature regulator.
Mammals also resort to other methods to regulate body temperature. Pigs and hippopotamuses roll in the mud to cool themselves, while dogs pant.
Have you ever wondered about the secretion on the skin of the hippopotamus? It is not sweat.
Hippos secrete a reddish oily fluid, sometimes called blood sweat, from special glands in their skin. This fluid functions as a skin moisturiser and antibiotic.
Picture Credit : Google