[4] Woolly monkeys are found throughout the northern countries of South America (Bolivia, Brazil, Colombia, Ecuador, Venezuela, and Peru).

Woolly monkey diets consist of fruit with an addition of leaves, seeds, flowers, and invertebrates.

[7][8] Play not only serves as a bonding process to rekindle relationships among individuals, but is also a way the species establishes a hierarchy or social pecking order, as well as passive food sharing, which is also considered a common routine in the species.

Woolly monkeys have an elaborate system of vocalization and olfactory, visual, and tactile communication.

Their main predators, however, are humans, who hunt the species both for food and for the illegal pet trade.

https://doi.org/10.1007/978-1-4939-0697-0_1 G. H. Theilen, D. Gould, M. Fowler, D. L. Dungworth, C-Type Virus in Tumor Tissue of a Woolly Monkey (Lagothrix spp.)

With Fibrosarcoma, JNCI: Journal of the National Cancer Institute, Volume 47, Issue 4, October 1971, Pages 881–889, https://doi.org/10.1093/jnci/47.4.881