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hair
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The science behind human hair growth
Giving robots and prosthetics a new sense: Touch
skin
A new technique for forensic hair analysis
The science behind hair bleaching
Quizzes
Male muscle, man flexing arm, bicep curl.
Facts You Should Know: The Human Body Quiz
Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.
Characteristics of the Human Body
Read Next
Back of a head of an older man with gray hair (aging, elderly, mature, grey, seniors).
Why Does Hair Turn Gray?
Happy young nurse assisting an elderly patient walking outside
Why Do Gray Hairs Have a Different Texture?
Many hands with different skin hues. human skin
12 Questions About Skin Answered
Discover
Panama Canal infographic
Timeline and Map of the Panama Canal
Stylish light blue jeans on wooden background, closeup of inset pocket
Why Do Jeans Have That Tiny Pocket?
Watergate scandal. Richard M. Nixon. President Nixon gives a press conference and talks to the press, March 12, 1971.
9 American Political Scandals
Close-up of ostriches (Struthio camelus) necks and heads; location unknown.
6 of the World's Most Dangerous Birds
Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.
10 of the World’s Most Dangerous Fish
Colorful winter sunset
What's the Difference Between a Solstice and an Equinox?
King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes

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hair, in mammals, the characteristic threadlike outgrowths of the outer layer of the skin (epidermis) that form an animal’s coat, or pelage. Hair is present in differing degrees on all mammals. On adult whales, elephants, sirenians, and rhinoceroses body hair is limited to scattered bristles. In most other mammals the hair is abundant enough to form a thick coat, while humans are among the most hairless of all mammals. The most important function of hair in mammals is that of insulating against cold by conserving body heat. The differing colours and colour patterns in hair coats can also serve purposes ...(100 of 503 words)

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