@[email protected] to Today I LearnedEnglish • 1 day agoTIL that due to a genetic bottle neck, 10% of the population of the pacific atoll of Pingelap has achromatopsia, i.e. only sees in black&whiteen.wikipedia.orgexternal-linkmessage-square26fedilinkarrow-up1300arrow-down11
arrow-up1299arrow-down1external-linkTIL that due to a genetic bottle neck, 10% of the population of the pacific atoll of Pingelap has achromatopsia, i.e. only sees in black&whiteen.wikipedia.org@[email protected] to Today I LearnedEnglish • 1 day agomessage-square26fedilink
minus-square@The_vlinkEnglish5•17 hours agoIt amazes me how little population migration there has been in africa. Discrete groups remain isolated from each other for tens or even hundreds of thousands of years. Everywhere else, population migrations and genetic mixing has occured regularly.
minus-square@JumpingspidermanlinkEnglish7•17 hours agoMy guess is that Africa’s more equitable geography didn’t often spur people to leave where they were born.
It amazes me how little population migration there has been in africa. Discrete groups remain isolated from each other for tens or even hundreds of thousands of years. Everywhere else, population migrations and genetic mixing has occured regularly.
My guess is that Africa’s more equitable geography didn’t often spur people to leave where they were born.