I only saw one individual, presumably the alpha male of this group of Wooly Monkey, while boating on the Yarapa River in Northern Peru.
This species lives in groups ranging from 2-6 individuals, which branch off from the main group into different trees. Woolly Monkeys have a diet that consists primarily of fruit, although leaves, seeds, flowers, and invertebrates are also consumed.
Reproduction in these groups is characterized as promiscuous. In other words, one male will generally mate with all of the females and vice-versa. Shortly after females reach maturity, they leave their natal groups (where they were born) as a means of avoiding inbreeding. Males will stay in their natal groups for life.
They are listed as vulnerable by IUCN.