Hair in mammals has no use other than warmth?

Question

Isn't that false?

Answer 1

The previous poster was very right. Also note that the whiskers on cats and other mammals are sensory in nature - they have lousy near sight so they use the specialized hairs of the whiskers to get the location of close in objects.

Answer 2

False. Your hair is controlled by the autonomic nervous system and the follicle has quite a few uses. When scared or nervous (or cold), small muscles called erector pili, which are attached to every hair, contract. This can keep a mammal warm by collecting pockets of air near the surface of skin which retain heat, but it also makes the mammal look larger in an attempt to frighten off a predator.

There are also glands connected to the hair follicles called sebacious glands. In humans, these glands secrete sebum, which helps kill bacteria on the skin as well as keeping it lubricated and slowing water loss.

Hair is often patterned and displayed by mammals to attract mates. On humans it helps cushion the skull. On skin it has an indirect sensory function to allow you to know, say, if an insect landed on you. As eyelashes it protects the eyes from particles. As eyebrows it enhances communication in facial expression, and in the nose it filters out large dust particles and microorganisms to protect the respiratory system.

So, yep, its got a couple of uses.

Answer 3

False,it also has a use for females to choose the male,either by the bright coloring or the mane like the lion species,and in preditors it is use to blend in the foreground,while the preys use it to blend in and hide

Answer 4

Yeah, that's false.