Why are North American Indians mostly dark?
“In general, people with ancestors from tropical regions and higher altitudes (who were hence exposed to greater ultraviolet radiation) have darker skin than people with ancestors from middle latitudes. This is far from a hard and fast rule, however, because many light-skinned groups have managed to survive at the equator through social adaptation. The same can be said of dark-skinned groups living at subtropical and temperate latitudes.” “Environmental factors: In attempting to discover the mechanisms that have generated such a wide variation in human skin tone, Jablonski and Chaplin discovered that there is a high correlation between the tone of human skin of indigenous peoples and the average annual ultraviolet (UV) radiation available for skin exposure where the indigenous peoples live. Accordingly, Jablonski and Chaplin plotted the skin tone (W) of indigenous peoples who have stayed in the same geographical area for the last 500 years versus the annual UV available for skin exposu
Not all dark skinned peoples come from hot and sunny climates… Look at the Nepalese and Mongolian people, they are ‘tan’ and then there are the Eskimo people. Looking at the features of the native people of North America, you will see that the Eskimo people have features that are very similar to the Mongolian. It is even thought that they came across the land bridge way back when. The Native people of the South West are very much the same in appearance as the Central and South American people. The Anasazi where the early SW native people who had to leave their villages, reason speculated, weather changes. It is quite probable that the people of the North and those from the south mingled and is what makes up the most of the ‘modern’ (Columbian) tribes And, they are not ‘Indians’…Indians come from India.