[stylin19a]

Scientists have understood for years that evolutionary selection of skin pigmentation was caused by the sun. As human ancestors gradually lost their pelts to allow evaporative cooling through sweating, their naked skin was directly exposed to sunlight. In the tropics, natural selection created darkly pigmented individuals to protect against the sun.

I am realy having a hard time getting my arms around all of this.
Since when does pimgntation protect from the sun ?

[Amberdawn]

I don’t know the mechanism, but have you ever noticed how balck people have hardly any wrinkles?