White-faced saki monkeys exhibit sexual dimorphism whereby the male and female look very different. Males undergo a color change so that by adulthood, they are all black with white fur around their faces.
Latin name: Pithecia pithecia Length: Up to 1.2 ft Weight: Up to 4.5 lbs Lifespan: 11 yrs Habitat: Tropical rainforest Diet: Fruit, seeds, honey, leaves, flowers, small mammals and birds Range: Northern South America