Alouatta caraya[1] is found in the tropical rain forests of central South America, extending through eastern Bolivia, Paraguay, southern Brazil, and northern Argentina.
- Alouatta caraya has long and powerful prehensile tails.
- These tails are usually hairless on the underside, allowing them to identify things and be sensitive to touch, like a fifth hand.
- The black face is also primarily hairless, with slightly bushy eyebrows. It has medium-sized brown eyes that are set frontally.
- Like other howler monkeys, they have an enlarged hyoid bone and larynx, which house the vocal tract that produces the characteristic howler.
- However, Alouatta caraya has a less prominent lower jaw and neck than some howler monkeys.
