This could also be explained by convergent evolution [1] where a similar trait was created by an independent evolutionary path. The wiki page for 'High-altitud

This could also be explained by convergent evolution [1] where a similar trait was created by an independent evolutionary path. The wiki page for 'High-altitude adaptation' in humans even mentions that adaptation to high altitude arose independently among different highlanders as a result of convergent evolution. [2] [1] https://en.wikipedia.org/wiki/Convergent_evolution https://en.wikipedia.org/wiki/Convergent_evolution [2] https://en.wikipedia.org/wiki/High-altitude_adaptation_in_humans#Ethiopians_2 https://en.wikipedia.org/wiki/High-altitude_adaptation_in_hu...