DARWIN SAYS:

‘At some future period, not very distant as measured by centuries, the civilized races of man will almost certainly exterminate, and replace, the savage races throughout the world.. . . The break between man and his nearest allies will then be wider, for it will intervene between man in a more civilized state, as we may hope, even than the Caucasian, and some ape as low as a baboon, instead of as now between the Negro or Australian and the gorilla.’


Reference: Darwin, Charles, 1896. The Descent of Man and Selection in Relation to Sex, page 156