Being in the same tropical region, why are Asians so thin and Africans so thin?
Black people are characterized by less curly body hair, low nose and dark skin color. Most of Africa has a tropical climate, so the characteristics of hair and nose bridge are beneficial to its heat dissipation. But in the area north of the Sahara desert, although it also belongs to Africa, it is mainly white, and there are also yellow people in the border area between Egypt and Asia.