Because most land mammals need to conserve their water. Sweating is used for cooling off and most animals have alernative ways to do that.
No, you do not have sweat glands on several parts of your body, such as the lips.
Only mammals have sweat glands. Dinosaurs were reptiles, so they did not have sweat glands.
sweat glands all do
Some mammals do not sweat. For mammals that do sweat, evaporation of the sweat is how cooling works.
Their output goes to the blood (to be distributed throughout the body).
No
Mice do not have sweat glands, so no they do not sweat. They cool off by dilating the blood vessels in their tail and ears and slow metabolism.
Mammary glands are modified sweat glands and are the distinctive feature in mammals.
Some mammals have sweat glands, but not all. Most furbearing animals, like dogs and cats, have no sweat glands; the fur would keep the sweat from evaporating and defeat the purpose of having them. Animals with no sweat glands cool off by panting.
Aside from humans, several others animals are able to sweat. These animals include horses and other primates like apes and monkeys.
Sweat glands are distributed over the entire skin surface except the nipples and parts of the external genitalia. There are up to 3 million of them per person. There are two types of sweat grands: eccrine and apocrine.Eccrine sweat glands, also called merocrine sweat glands, are far more numerous and are particularly abundant on the palms, soles of the feet, and forehead.Apocrine sweat glands, approximately 2000 of them are largely confined to the axillary and anogenital areas.
sweat glands