Large Monkeys

The brown howler monkey, also called the brown howler monkey, is a species of New World monkey that lives in the forests of southeastern Brazil and northeastern Argentina. Despite the common name "brown howler", its color is remarkably variable, with some individuals mainly appearing black or reddish-orange.

The sooty mangabey, also called the white-collared or white-crowned mangabey is a predominantly terrestrial Old-World monkey. Sooty mangabeys remember the location of the fallen fruit and can tell whether or not a tree is bearing fruit.

The Nepal gray langur (Semnopithecus schistaceus) is a gray langur native to the Himalayas of Nepal, extreme southwestern Tibet, northern Pakistan, northern India, Bhutan, and possibly Afghanistan. The Nepal gray langur is both terrestrial and arboreal.

The mandrill (Mandrillus sphinx) is a primate of the Old-World monkey family (Cercopithecidae). It is among the two species in the Mandrillus genus and drill. Groups of mandrills can vary from a few individuals to 50 individuals.

Geoffroy's spider monkey (Ateles geoffroyi) also called the Central American spider monkey or black-handed spider monkey, is a species of spider monkey. The species name geoffroyi is honored by Étienne Geoffroy Saint-Hilaire, a French naturalist. The Geoffroy's spider monkey consists of five recognized subspecies residing in various parts of Central America and Mexico. These include the Hooded spider monkey (A. g. grisescens) in southern Mexico, the ornately-patterned Ornate spider monkey (A. g. ornatus) in Costa Rica and Panama, the Yucatan spider monkey (A. g. yucatanensis) in the Yucatan Peninsula, the Mexican spider monkey (A. g. vellerosus) in Veracruz, and the nominate Nicaraguan spider monkey subspecies (A. g. geoffroyi) found in Nicaragua, Honduras and northern Costa Rica.

The blue monkey is a species of Old-World monkey endemic to east and central Africa, ranging from the upper Congo Basin east to the East African Rift Valley and south to Zambia and northern Angola.

Moustached tamarins, also known as black-chested moustached tamarins and Spyx's moustached tamarins, are native to Peru and Brazil. These monkeys are found in all strata of the lowland Amazon rainforest. The moustached tamarin gets its name from the lack of coloration in the facial hair around the mouth, which resembles a mustache.

Peruvian spider monkeys, like other Ateles species, have a prehensile tail that can be used to facilitate brachiation. Typically, Peruvian spider monkeys have completely black fur and complexions, unlike the lighter red-faced black spider monkey.

The black-and-white snub-nosed monkey, also called the Yunnan snub-nosed monkey, is a large black-and-white primate living only in Yunnan Province in southern China, where it is known to the local population as the Yunnan golden-haired monkey. The species gets the "snub-nosed" part of its name due to its lack of nasal bones.

Alouatta caraya is found in the tropical rain forests of central South America, extending through eastern Bolivia, Paraguay, southern Brazil, and northern Argentina. Alouatta Caraya monkeys are sexually dimorphic, with males weighing an average of 6.7 kg and females an average of 4.4 kg.

Black-crested mangabeys, also known as black mangabeys, are endemic to central Africa, occupying the Democratic Republic of the Congo, south of the Congo River (formerly known as the Zaire River), and likely extinct in Angola. They are mainly found in primary and secondary tropical forests, gallery forests, and swamps. Locals nicknamed these primates "baboon mangabeys" due to their resemblance to the baboon species.

The Bengal sacred langur, also known as Hanuman's langur and the northern plains gray langur, is a primate species in the Cercopithecidae family. The Bengal sacred langurs are often referred to as "Hanuman's langurs", named after Lord Hanuman - the Hindu god.

The Barbary macaque, also called the Magot macaque, is a macaque endemic to the Atlas Mountains in Morocco and Algeria and a small introduced population in Gibraltar. Before the Ice Age, they inhabited the Mediterranean coasts and most of Europe, as far away as the British Isles and Germany.

The Banded langur, also known as the Raffles' banded langur or banded leaf monkey, is a primate species in the Cercopithecidae family. Like other Colobin monkeys, whose young typically have lighter-colored fur than adults, Banded langur infants have white or tan fur until it darkens around 6 months.

The Assam macaque, also known as Assamese macaque, is a macaque of the Old-World monkey family endemic to South and Southeast Asia. Assam is another state in India. Eating everything from fruits to 55 types of flowers, leaves, seeds, and bark, these macaque monkeys adapt their diet to suit their habitat.

The Ashy-red Colobus or Ugandan red Colobus is an endangered species of red Colobus endemic to Eastern Africa. Like other colobus monkeys, Ashy Red has small thumbs that allow it to comfortably grip branches and swing nimbly through the canopy. In 2001, the ashy-red Colobus was recognized as a separate species.

The Arunachal macaque is a comparatively sizeable brown primate with a relatively short tail. Arunachal macaques were first classified into Cercopithecidae's taxonomy in 2005 by primatologists Madhusudan and Mishra.

The Annamese langur is another Old-World monkey in the subfamily Colobinae. Annamese langurs are covered in thick, gray fur. They have dark faces, and the space around the eyes is pale and forms a ring, often in the flesh. Trachypithecus margarita is a monotypic species as it has no subspecies.

The Angolan Colobus is a conspicuously-patterned monkey with a very long tail that helps it maintain its balance as it moves quickly through the trees. Although the species is named after Angola, it's rare in this country.

Amazon Black Howler is a New World tropical arboreal characterized by densely furry, prehensile tails, all-black faces, a stocky build, relatively large size, and loud howls. According to researchers, its howl sounds like a strong wind blowing through a tunnel can be heard more than two miles away.

The Agile Mangabey is another Old-World monkey of the White-Eylid Mangabey group mainly found in swampy forests. Due to habitat loss, mangabeys are now listed as endangered, both male and female.