New World Monkeys (Central and South America)
* Capuchin Monkeys: White-faced capuchin, brown capuchin
* Squirrel Monkeys: Common squirrel monkey, Bolivian squirrel monkey
* Howler Monkeys: Mantled howler, black howler
* Spider Monkeys: Black-handed spider monkey, Geoffroy's spider monkey
* Marmosets: Common marmoset, pygmy marmoset
* Tamarins: Golden lion tamarin, emperor tamarin
Old World Monkeys (Africa and Asia)
* Baboon: Olive baboon, chacma baboon
* Macaque: Rhesus macaque, Japanese macaque
* Langur: Hanuman langur, dusky langur
* Proboscis Monkey: Proboscis monkey
* Colobus Monkey: Black and white colobus, red colobus
* Mandrill: Mandrill
* Gorilla: Western gorilla, eastern gorilla
* Chimpanzee: Common chimpanzee, bonobo
Other notable primates
* Orangutan: Sumatran orangutan, Bornean orangutan
* Gibbon: White-handed gibbon, siamang
This is just a small sampling of the many monkey species that exist. Each species has unique characteristics and behaviors.