The Sumatran orangutan (Pongo abelii) is one of the three species of orangutans. Critically Endangered, and found only in the north of the Indonesian island of Sumatra, it is rarer than the Bornean orangutan but more common than the recently...
The Tapanuli orangutan (Pongo tapanuliensis) is a species of orangutan found in the island of Sumatra in Indonesia. It is one of three known species of orangutan, alongside the Sumatran orangutan, found farther northwest on the island, and the...
The Siamang gibbon (Symphalangus syndactylus) is an arboreal, black-furred gibbon native to the forests of Southeast Asia. The largest of the gibbons, the siamang can be twice the size of other gibbons. It is the only species in the genus...
The Lar gibbon (Hylobates lar) is a captivating primate and a master of agility, being remarkably fast when swinging through the trees from branch to branch. It has long arms and hands, perfectly adapted to this means of locomotion. It is an...
The Agile gibbon (Hylobates agilis), a is an endangered primate found in Southeast Asia. Like all gibbons, they move by swinging from branch to branch for distances up to 15 m (50 ft) and can also make leaps up to 8 m (26 ft), and walk bipedally...
The Sunda slow loris (Nycticebus coucang ) or greater slow loris is a strepsirrhine primate and a species of slow loris native to Indonesia, West Malaysia, southern Thailand and Singapore. It measures 27 to 38 cm (11 to 15 in) from head to tail and...
The pig-tailed langur (Simias concolor ), monotypic in genus Simias, is a large Old World monkey, endemic to several small islands off the coast of Sumatra in Indonesia. Its face is black, its fur is blackish-brown and it has a relatively short...
Kloss's gibbon (Hylobates klossii ), also known as the Mentawai gibbon, the bilou or dwarf siamang, is an endangered primate in the gibbon family, Hylobatidae. It is identifiable in that it is all black, resembling the siamang with its black fur,...
The Pagai Island macaque (Macaca pagensis ), also known as the Pagai macaque or Bokkoi, is an Old World monkey endemic to the Mentawai Islands off the west coast of Sumatra. It is listed as critically endangered on the IUCN Red List due to its...
The Thomas's langur (Presbytis thomasi ) is a species of primate in the family Cercopithecidae. It is endemic to northern Sumatra, Indonesia. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss. Its native...
The black-crested Sumatran langur (Presbytis melalophos ) is a species of primate in the family Cercopithecidae. It is endemic to Sumatra in Indonesia. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.The...
The Siberut macaque (Macaca siberu ) is a vulnerable species of macaque, which is endemic to Siberut Island in Indonesia. It was formerly considered conspecific with the Pagai Island macaque (M. pagensis ) which is overall paler in color, but this...
The Natuna Island surili (Presbytis natunae ) is a species of primate in the family Cercopithecidae.
The Mentawai langur (Presbytis potenziani ) is a species of primate in the family Cercopithecidae. It is endemic to the Mentawai Islands in Indonesia. Its natural habitat is subtropical or tropical dry forests. The Siberut langur (P. siberu ) was...
The white-thighed surili (Presbytis siamensis ) is a species of primate from the family of old world monkeys (Cercopithecidae). This species lives arboreal amongst the sub-montane forests. It is endemic to the Thai-Malay Peninsula, the Riau...
The Sumatran lar gibbon (Hylobates lar vestitus ), also known as the Sumatran white-handed gibbon, is a subspecies of the lar gibbon, a primate in the gibbon family Hylobatidae. It is native to the island of Sumatra, Indonesia. It shares the tree...
The Bangka slow loris (Nycticebus bancanus ) is a strepsirrhine primate and a species of slow loris that is native to southwestern Borneo and the island of Bangka. Originally considered a subspecies or synonym of the Bornean slow loris...
