Of all the Somali the Rahanwin betray the largest infusion of negroid blood.
Negroid peoples predominate, but there are many pastoral Fula and Arabs.
Intermarriage with British, Dutch, and French with Caribs and Creoles has further complicated the ethnology of the country, producing "Indians" with fair hair and blue eyes, and half-castes with European features and Indian or negroid coloration, or with European coloration and Indian or negroid features.
Boyd Dawkins and Brinton, that the French cave man came hither by way of Iceland; or with Keane, that two subvarieties, the long-headed Eskimo-Botocudo type and the Mexican roundheaded type, prior to all cultural developments, reached the New World, one by Iceland, the other by Bering Sea; or that Malayoid wanderers were stranded on the coast of South America; or that no breach of continuity has occurred since first the march of tribes began this way - ethnologists agree that the aborigines of the western came from the eastern hemisphere,and there is lacking any biological evidence of Caucasoid or Negroid blood flowing in the veins of Americans before the invasions of historic times.
The ruling caste in Nigeria, on the other hand, despise their pastoral brethren, and through generations of polygamy with the conquered tribes have become more Negroid in type, black, burly and coarse featured.