Our body is covered with about five million hair follicles. What types of hair they grow, and when and where they grow it, is influenced by your genetics. Find out if you were genetically predisposed and it's implications with this report.
Body hair and early human history
Hairlessness is the most striking difference between modern humans and our ancient ancestors. Some scientists believe that losing body hair helped control body temperature in hot climates. It is possible that less body hair aided in "persistence hunting" a tactic where teams of hunters chased their prey over long distances until the animal was exhausted. Less body hair meant better sweating and cooling, making humans uniquely successful in this hunting technique.
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