Spider monkeys are members of the order Primates, formerly included in the family Cebidae but now placed in the family Atelidae. They belong to the genus Ateles, which includes four species. These New World monkeys are found throughout the tropical rain forest regions of southern Mexico and Central and South America. Spider monkeys range between
New World monkeys (NWMs), also known as platyrrhines, live in tropical forest environments from southern Mexico down through South America. The name platyrrhine comes from the broad, flat, external nose characteristic of this group of primates. There are more than 50 species of NWMs, all of which are predominantly arboreal and herbivorous. NWMs are divided
Old World monkeys (OWMs) are one of two major groups of monkeys, consisting of all primates belonging to the family Cercopithecidae. The family is composed of 18 genera and approximately 90 species, including baboons, colobines, guenons, and macaques. OWMs are found throughout large portions of Africa and Asia, living in a wide range of habitats.
Howling monkeys are a group of New World Monkeys (NWM) belonging to the subfamily Alouattinae and genus Alouatta. There are eight species of howling monkeys—the red-handed howler (Alouatta belzebul), black-and-gold howler (A. caraya), Coiba Island howler (A. coibensis), brown howler (A. fusca), mantled howler (A. palliata), black howler (A. pigra), red howler (A. seniculus), and