March 2023 in “Journal of Student Research” Humans likely became hairless to better regulate body temperature.
50 citations
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February 2013 in “BMC evolutionary biology” Cetaceans lost hair due to changes in the Hr and FGF5 genes.
1 citations
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May 2008 in “Journal of Experimental Biology” Different species have unique sensory adaptations to perceive their environments.
Dark hair with a red beard likely evolved for camouflage, not attraction.
January 2026 in “Stem Cell Reviews and Reports” Hair graying may help prevent cancer by protecting stem cells.