Human skin color is a dynamic adaptation, not a fixed trait
In short: Skin tone has never been static throughout our species' history. This video explores how human pigmentation evolved as a functional response to environment and sunlight over the last 200,000 years.
The human species has existed for approximately 200,000 years, during which skin color has been in constant flux. Early humans likely possessed dark skin, a significant shift from ancestral species that featured light skin and coarse hair. This transition provided two primary evolutionary advantages: effective thermoregulation and photoprotection against UV exposure.
Modern human pigmentation broadly correlates to a latitudinal gradient of sun exposure. By understanding these genetic and historical shifts, we can see how our diverse array of shades today represents a complex history of biological adaptation to different climates.
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Sources
- Summary by Intellect · source: Evo-Ed: History, Genetics, and Human Skin Color
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