The sound of a monkey depends on the species of the monkey. Many have loud calls, yells, or screams. Others may make a chirping or cooing sound.
Spider monkeys of the genus Ateles are New World monkeys in the subfamily Atelinae, family Atelidae. Like other atelines, they are found in tropical forests of Central and South America, from southern Mexico to Brazil. The genus contains seven species, all of which are under threat; the black-headed spider monkey, wooly spider monkey, and brown spider monkey are critically endangered.