Why do humans require body hair?
Asked in Pubic Lice (crabs)
What is the difference between lice and pubic lice?
Asked in Religion & Spirituality, Anthropology
Humans are often called the naked apes Since we have extensive hair follicles all over our body why do you suppose we lack body hair?
The most widely held theory is that humans lost their hair evolving on the savannas of Africa in order to stay cool. One controversial hypothesis, called the Aquatic Ape Hypothesis, suggests that humans lost their hair evolving in semiaquatic or shoreline areas of east Africa as an adaptation to water (cf. dolphins and whales and their hair patterns). its a genetic thing. From birth little particles of hair will start growing all over your body. As you get older the hormones in your body start to increase and more hair is produced.
Asked in Mice and Rats
Does the fur on a rat and human hair serve a similar purspose?
Asked in Mammals
Is Insulating body hair is a characterisitc of mammals?
All mammals have some hair, but cetaceans, sirenians, elephants, domestic pigs, naked mole rats, hippopotamuses, rhinoceroses, walruses, sea lions, some seals, and others lack dense, inslulating body hair. Humans' body hair is not very dense either. Thus, hair is a characteristic of mammals, but dense hair covering the entire body is not.
Asked in Science
What type of arachnid is parasitic and can be found on humans?
What year did people start wearing clothes?
At this moment in time no concrete answer exists to this question, however based on the research of 2 different groups into genetic analysis of human body lice, it is believed humans started wearing clothes either 100,000 years ago (roughly matching the date humans are believed to have started migrating from Africa) or 550,000 years ago. The reasoning behind studying human body lice to deduce when humans started wearing clothes is that, unlike fleas, lice have very week legs and require the presence of hair to latch onto, in order to be able to stay on the body. In the absence of hair, human body lice would need to stay on clothes to be close to the human body. At some point in history humans gradually lost their body hair and started wearing clothes instead, and by studying the genetic history of the body lice, scientists hope to be able to find a point where they stopped latching on to body hair and started resting on clothes to stay near the human body, thus indicating when people started to wear clothes.
Asked in Hair
What do you call hair styles that don't require hair products?
Asked in Hair
What is the point of butt hair?
Body hair really doesn't have a function in modern humans, but it probably did at some point in the ancient past of our species. Humans are mammals, and mammals in general are covered with body hair. This hair (or fur) provides protection from weather elements, as well as from physical damage such as cuts and abrasions. For whatever reason, humans as a species have genetically lost most of their body hair. Most that remains is residual and mostly confined to the head and groin, and to the facial region of most mature males; we know that genetics are involved because there are individuals with far more body hair than usual, and because the tendency toward body hair runs in families. ---- Whilst most of what you say is reasonable, in fact humans have the same number of hair as apes for example, about five million of which two percent are on the scalp. It is just so fine that it is hardly noticable although it covers our entire body. The areas where it is thickest are around parts where friction occurs and on top of the head for protection.
Asked in Science
Should guys have hairs at all in his body?
Asked in Zoology or Animal Biology
Is the primary function of the hair on mammals for isulation?
Yes, in most cases hair on animals especially mammals is for insulation. Humans have lost the thick hair that most mammals have. Humans have tiny light hair follicles over most of the body. The only place that you don't find here in humans are the lips, the soles of the feet and the palms of the hands. For some reason we have lost that gene that produces the heavier hair found in most mammals.