Humboldt’s woolly monkey[1], common woolly monkey, or brown woolly monkey (Lagothrix lagothricha) is a woolly monkey endemic to Venezuela, Brazil, Ecuador, Bolivia, Peru, and Colombia.
- Humboldt’s woolly monkeys are large, stocky animals and are among the largest New World Monkeys by weight.
- The length of the head and body varies from 55.8 to 68.6 cm, and the prehensile tail from 60 to 72 mm.
- The coat is short, dense, coarse, and consists mainly of an undercoat. Color varies widely, with upper parts being pale smoky brown, dark brown, dark gray, pale gray, russet, or olive.
- In some of Humboldt’s woolly monkeys, the color of the head and limbs is noticeably darker than the back; in others, the color is uniform.
- The underside is usually a little paler than the rest of the body.