Melanesians are South Pacific black island people who have a large population with naturally Blonde hair.
In past theories, it was thought they were born with such light hair as a result from sun and salt lightening, a high fish intake diet or generic heritage from mixed breeding with Europeans/Americans who founded the islands.
Through recent scientific studies, it has been proven the blonde Melanesians people have a native TYRP1 gene which is responsible for their light hair and actually doesn’t exist in Caucasian Europeans and is completely limited to Oceanians.
A single mutation in the TYRP1 gene, which is involved in hair and skin pigmentation distinguished those with blonde hair, this mutation is recessive and therefore two copies are needed for a person to have blonde hair.