From your wikipedia link: Blue eyes contain low amounts of melanin...
Blue eyes are most common in Northern Europe and Central Europe and to a lesser degree in Southern Europe,North America and southern Central Asia; Afghanistan is a notable example.[30] They're also found in parts of North Africa,[31] West Asia, and South Asia[32], in particular the northern areas of India and Pakistan. It can rarely occur as far south as Sri Lanka. However blue eyes are not found within the population of East Asia, due to the major pre-dominance of the brown eye gene in the area.
Central Asians, people from the Caucasus, Afghans, Pakistanis, and even Indians darker then many an African are considered Caucasian. They are Caucasians. And North Africa is full of Caucasians, hell even German tribes, Goths if I recall correctly, settled there during Roman times.
So only Caucasians have Blue eyes. Again because of a gene mutation which control how much melanin is deposited in hair, skin, and irises.
Someone with a lot of melanin could have blue eyes, but they wouldn't appear blue do the the melanin. That's why blue eyes contain low amounts of melanin.
And low amounts of melanin are related to vitamin D, which is related to living in northern climates.
Blue eyes are most common in Northern Europe and Central Europe and to a lesser degree in Southern Europe,North America and southern Central Asia; Afghanistan is a notable example.[30] They're also found in parts of North Africa,[31] West Asia, and South Asia[32], in particular the northern areas of India and Pakistan. It can rarely occur as far south as Sri Lanka. However blue eyes are not found within the population of East Asia, due to the major pre-dominance of the brown eye gene in the area.
Central Asians, people from the Caucasus, Afghans, Pakistanis, and even Indians darker then many an African are considered Caucasian. They are Caucasians. And North Africa is full of Caucasians, hell even German tribes, Goths if I recall correctly, settled there during Roman times.
So only Caucasians have Blue eyes. Again because of a gene mutation which control how much melanin is deposited in hair, skin, and irises.
Someone with a lot of melanin could have blue eyes, but they wouldn't appear blue do the the melanin. That's why blue eyes contain low amounts of melanin.
And low amounts of melanin are related to vitamin D, which is related to living in northern climates.