White-faced saki

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Before the 1970s, this Northern South American monkey was very rare in captivity, but an improved understanding of its diet and health have led to this species being bred frequently, so that it is now one of the most widely-kept New World primates in American zoos. This is one of a relatively small number of primates where the sexes are easily told by their color; males are black with white faces, while females are grayish with a whitish line on either side of the muzzle.

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