White-faced Saki

The White-faced Saki, also known as the Guianan Saki and the Golden-faced Saki, is a species of saki monkey, a type of New World monkey, found in Brazil, French Guiana, Guyana, Suriname, and Venezuela. This species lives in the understory and lower canopy of the forest, feeding mostly on fruits, but also eating nuts, seeds, and insects.

There are two recognized subspecies of this monkey:

  • Pithecia pithecia pithecia
  • Pithecia pithecia chrysocephala

Reproductive Biology

In captivity, female White-faced Sakis experience ovarian cycles of approximately 17 days, and a gestational period of 20-21 weeks. Following birth, the mother undergoes a period of lactationally-induced fertility lasting 23 weeks, on average.

Sakis of the Pithecia pithecia species display noticeable sexual dimorphism in their coloration. Females have shorter hair than males, with brownish-grey fur and white or pale brown stripes around the corners of the nose and mouth. Males, on the other hand, have blacker fur, with a reddish-white forehead, face, and throat



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