
Naming
A formerly recognized subspecies of this monkey, "P. p. chrysocephala", was elevated to full species status as "P. chrysocephala" in 2014.
Behavior
A pair often mates for life. They are very devoted and will strengthen their bond by grooming one another.
Reproduction
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 infertility lasting 23 weeks, on average.White-faced sakis display noticeable sexual dichromism 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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