Conservation - Endangered Primates (248) More files...
According to a report published in January 2017, 60% of the world's primate species are threatened with extinction. The IUCN Red Data List shows that a total of 184 primates are either endangered or critically endangered. The main threats to primates are habitat destruction, hunting for bushmeat, and illegal trade. It is vital that awareness of the plight of primates is urgently raised to prevent an extinction crisis, which would be at great cost both to biodiversity and human society.

For the full report in Science Advances go to http://advances.sciencemag.org/content/3/1/e1600946.full
Black and white ruffed lemur (Varecia variegata variegata) portrait, Captive, Madagascar, Critically endangered
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Inaki Relanzon / Black and white ruffed lemur (Varecia variegata variegata) portrait, Captive, Madagascar, Critically endangered
Verreaux Sifaka (Propithecus verreauxi) jumping ('dancing') across ground, Madagascar
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Andy Rouse / Verreaux Sifaka (Propithecus verreauxi) jumping ('dancing') across ground, Madagascar
Young Mountain Gorilla (Gorilla beringei beringei) portrait, looking thoughtful. Parc des Volcans National Park, Rwanda, December.
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Ole Jorgen Liodden / Young Mountain Gorilla (Gorilla beringei beringei) portrait, looking thoughtful. Parc des Volcans National Park, Rwanda, December.
Red-shanked Douc langur (Pygathrix nemaeus) adult male and female, Vietnam
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Cyril Ruoso / Red-shanked Douc langur (Pygathrix nemaeus) adult male and female, Vietnam
Aye-aye (Daubentonia madagascariensis) captive, from Madagascar, Endangerd species, Bristol Zoo
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Mark Carwardine / Aye-aye (Daubentonia madagascariensis) captive, from Madagascar, Endangerd species, Bristol Zoo
Celebes / Black crested macaque (Macaca nigra) group up close, watching with curiosity, Tangkoko National Park, Sulawesi, Indonesia.
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Anup Shah / Celebes / Black crested macaque (Macaca nigra) group up close, watching with curiosity, Tangkoko National Park, Sulawesi, Indonesia.
Proboscis Monkey (Nasalis larvatus) mature male head and shoulders portrait. Bako National Park, Sarawak, Borneo, Malaysia, April. Did you know? A Proboscis monkey's nose can reach up to a quarter of...
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Fiona Rogers / Proboscis Monkey (Nasalis larvatus) mature male head and shoulders portrait. Bako National Park, Sarawak, Borneo, Malaysia, April. Did you know? A Proboscis monkey's nose can reach up to a quarter of...
Mountain gorilla (Gorilla beringei beringei) mother with young, and silverback in background. Virunga Mountains, Rwanda. Non-ex.
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Andy Rouse / Mountain gorilla (Gorilla beringei beringei) mother with young, and silverback in background. Virunga Mountains, Rwanda. Non-ex.
Golden monkey (Rhinopithecus roxellana) young perched on branch, Qinling Mountains, China.
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Cyril Ruoso / Golden monkey (Rhinopithecus roxellana) young perched on branch, Qinling Mountains, China.
Arunachal macaque (Macaca munzala) Tawang, Arunachal Pradesh, India. Endangered species.
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Sandesh Kadur / Arunachal macaque (Macaca munzala) Tawang, Arunachal Pradesh, India. Endangered species.
Golden-crowned Sifaka or Tattersall's Sifaka (Propithecus tattersalli) climbing down tree in forests near Andranotsimaty, Daraina, north east Madagascar. Critically Endangered.
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Nick Garbutt / Golden-crowned Sifaka or Tattersall's Sifaka (Propithecus tattersalli) climbing down tree in forests near Andranotsimaty, Daraina, north east Madagascar. Critically Endangered.
Black and white ruffed lemur (Varecia variegata) hanging from tree, Madagascar, critically endangered
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Nick Garbutt / Black and white ruffed lemur (Varecia variegata) hanging from tree, Madagascar, critically endangered
Adult male Drill (Mandrillus leucophaeus) Pandrillus Sanctuary, Nigeria. Non-ex
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Cyril Ruoso / Adult male Drill (Mandrillus leucophaeus) Pandrillus Sanctuary, Nigeria. Non-ex
Proboscis Monkey (Nasalis larvatus) female sitting in tree, partially framed by soft focus leaves in foreground, Bako National Park, Sarawak, Borneo, Malaysia
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Edwin Giesbers / Proboscis Monkey (Nasalis larvatus) female sitting in tree, partially framed by soft focus leaves in foreground, Bako National Park, Sarawak, Borneo, Malaysia
Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tata' and her unnamed baby aged 2-3 months portrait. Camp Leakey, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia. June 2010. Reh...
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Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Tata' and her unnamed baby aged 2-3 months portrait. Camp Leakey, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia. June 2010. Reh...
Ring tailed Lemurs (Lemur catta) silhouetted, Madagascar.
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Andy Rouse,Andy Rouse / Ring tailed Lemurs (Lemur catta) silhouetted, Madagascar.
Hubbard's sportive lemur (Lepilemur hubbardi) Zombitse National Park, South Madagascar.
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Inaki Relanzon / Hubbard's sportive lemur (Lepilemur hubbardi) Zombitse National Park, South Madagascar.
Verreaux's sifaka lemur (Propithecus verreauxi) hanging in relaxed posture from a branch in the canopy, Berenty Private Reserve, southern Madagascar.
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Nick Garbutt / Verreaux's sifaka lemur (Propithecus verreauxi) hanging in relaxed posture from a branch in the canopy, Berenty Private Reserve, southern Madagascar.
Silky sifaka (Propithecus candidus) adult with juvenile in tree, Marojejy National Park, North Madagascar Critically endangered, November 2010
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Inaki Relanzon / Silky sifaka (Propithecus candidus) adult with juvenile in tree, Marojejy National Park, North Madagascar Critically endangered, November 2010
Lion-tailed macaque (Macaca silenus) female portrait. Anamalai Tiger Reserve, Western Ghats, Tamil Nadu, India. Apr 2013.
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Fiona Rogers / Lion-tailed macaque (Macaca silenus) female portrait. Anamalai Tiger Reserve, Western Ghats, Tamil Nadu, India. Apr 2013.
Sumatran orangutan (Pongo abelii) female holding hands with baby whilst hanging from liana. Gunung Leuser National Park, Sumatra, Indonesia.
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Cyril Ruoso / Sumatran orangutan (Pongo abelii) female holding hands with baby whilst hanging from liana. Gunung Leuser National Park, Sumatra, Indonesia.
Indri (Indri indri) calling, Andasibe-Mantadia NP, Madagascar
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Bernard Castelein / Indri (Indri indri) calling, Andasibe-Mantadia NP, Madagascar
Guatemalan Black Howler Monkey (Alouatta pigra) climbing,  Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) climbing, Community Baboon Sanctuary, Belize, Central America. Endangered species.
Yellow-tailed woolly monkey (Oreonax / Lagothrix flavicauda) on branch with tail in air, Alto Mayo, Amazonas, Peru, critically endangered species
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Mark Bowler / Yellow-tailed woolly monkey (Oreonax / Lagothrix flavicauda) on branch with tail in air, Alto Mayo, Amazonas, Peru, critically endangered species
Golden lion tamarin (Leontopithecus rosalia) captive, occurs in the Atlantic Rainforest of Brazil. Critically endangered.
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Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, occurs in the Atlantic Rainforest of Brazil. Critically endangered.
Coquerel's Sifakas (Propithecus coquereli) in coastal rainforest, Palmarium Reserve, Madagascar
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Andy Rouse / Coquerel's Sifakas (Propithecus coquereli) in coastal rainforest, Palmarium Reserve, Madagascar
Man with Chamec spider monkeys (Ateles chamek) holding onto him as he walks through sanctuary. Ikamaperou Sanctuary, Amazon, Peru. October 2006.
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Cyril Ruoso / Man with Chamec spider monkeys (Ateles chamek) holding onto him as he walks through sanctuary. Ikamaperou Sanctuary, Amazon, Peru. October 2006.
Female Crowned lemur (Eulemur coronatus) portrait, Ankarana Special Reserve, Ambilobe, North Madagascar, November
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Inaki Relanzon / Female Crowned lemur (Eulemur coronatus) portrait, Ankarana Special Reserve, Ambilobe, North Madagascar, November
Golden-headed lion tamarin (Leontopithecus chrysomelas) captive portrait, Apenheul Park, Netherlands.
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Juan Carlos Munoz / Golden-headed lion tamarin (Leontopithecus chrysomelas) captive portrait, Apenheul Park, Netherlands.
Toque Macaque {Macaca sinica} silhouette against setting sun, Dambulla, Sri Lanka
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Matthew Maran / Toque Macaque {Macaca sinica} silhouette against setting sun, Dambulla, Sri Lanka
Black and white ruffed lemur (Varecia variegata variegata) hanging from tree, Madagascar, captive
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Edwin Giesbers / Black and white ruffed lemur (Varecia variegata variegata) hanging from tree, Madagascar, captive
Yunnan snub nosed monkey female with baby, {Rhinopithecus bieti} Yunnan, China
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Xi Zhinong / Yunnan snub nosed monkey female with baby, {Rhinopithecus bieti} Yunnan, China
Bonobo adolescent male portrait (Pan paniscus). Lola Ya Bonobo Santuary, Democratic Republic of Congo. Oct 2010.
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Fiona Rogers / Bonobo adolescent male portrait (Pan paniscus). Lola Ya Bonobo Santuary, Democratic Republic of Congo. Oct 2010.
Portrait of wild Cotton-top tamarins (Saguinus oedipus) standing on a branch in dry tropical forest of Colombia, South America IUCN List: Critically Endangered
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Lisa Hoffner / Portrait of wild Cotton-top tamarins (Saguinus oedipus) standing on a branch in dry tropical forest of Colombia, South America IUCN List: Critically Endangered
Barbary macaque (Macaca sylvanus) baby sitting with mother, Gibraltar Nature Reserve, Gibraltar, June.
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Edwin Giesbers / Barbary macaque (Macaca sylvanus) baby sitting with mother, Gibraltar Nature Reserve, Gibraltar, June.
Wild Cotton-top Tamarin (Saguinus Oedipus) on vine, in tropical dry forest of Colombia, South America. IUCN List: Critically Endangered
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Lisa Hoffner / Wild Cotton-top Tamarin (Saguinus Oedipus) on vine, in tropical dry forest of Colombia, South America. IUCN List: Critically Endangered
Yunnan Snub-nosed Monkey (Rhinopithecus bieti) portrait,. Yunnan Province, China.
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Will Burrard-Lucas / Yunnan Snub-nosed Monkey (Rhinopithecus bieti) portrait,. Yunnan Province, China.
Coquerel's Sifaka (Propithecus coquereli) jumping, Palmarium Reserve, Madagascar
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Andy Rouse / Coquerel's Sifaka (Propithecus coquereli) jumping, Palmarium Reserve, Madagascar
Yellow / Golden cheeked crested gibbon {Hylobates / Nomascus gabriellae} Young male hanging upside-down in tree, captive, from Asia, IUCN Vulnerable
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Eric Baccega / Yellow / Golden cheeked crested gibbon {Hylobates / Nomascus gabriellae} Young male hanging upside-down in tree, captive, from Asia, IUCN Vulnerable
Silky Sifaka Lemur (Propithecus diadema candidus) one of the most endangered primate in the world, Marojejy National Park, Sambava, Madagascar.
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Inaki Relanzon / Silky Sifaka Lemur (Propithecus diadema candidus) one of the most endangered primate in the world, Marojejy National Park, Sambava, Madagascar.
Eastern chimpanzee (Pan troglodytes schweinfurtheii) infant male 'Google' aged 2 years, portrait. Gombe National Park, Tanzania.
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Fiona Rogers / Eastern chimpanzee (Pan troglodytes schweinfurtheii) infant male 'Google' aged 2 years, portrait. Gombe National Park, Tanzania.
Eastern chimpanzee (Pan troglodytes schweinfurtheii) male 'Faustino' aged 22 years walking along a track preparing to display. Gombe National Park, Tanzania.
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Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) male 'Faustino' aged 22 years walking along a track preparing to display. Gombe National Park, Tanzania.
Bonobo (Pan paniscus) mature male 'Fizi' aged approx 15 years, showing aggression, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.
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Anup Shah / Bonobo (Pan paniscus) mature male 'Fizi' aged approx 15 years, showing aggression, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.
Roloway Diana monkey (Cercopithecus diana roloway) captive at Monkey Valley Zoo / Zoo La Vallee des Singes, Romagne, France. Native to Cote d'Ivoire and Ghana.
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Roland Seitre / Roloway Diana monkey (Cercopithecus diana roloway) captive at Monkey Valley Zoo / Zoo La Vallee des Singes, Romagne, France. Native to Cote d'Ivoire and Ghana.
Bonobo (Pan paniscus) foraging in river, Lola Ya Bonobo Sanctuary, Democratic Republic of the Congo.  Non-ex
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Cyril Ruoso / Bonobo (Pan paniscus) foraging in river, Lola Ya Bonobo Sanctuary, Democratic Republic of the Congo. Non-ex
Proboscis monkey (Nasalis larvatus), Sabah Malaysia, Borneo.
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Juan Carlos Munoz / Proboscis monkey (Nasalis larvatus), Sabah Malaysia, Borneo.
Mountain gorilla (Gorilla beringei beringei) juvenile hanging from branch, Volcanoes NP, Virunga mountains, Rwanda
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Andy Rouse / Mountain gorilla (Gorilla beringei beringei) juvenile hanging from branch, Volcanoes NP, Virunga mountains, Rwanda
Lion-tailed macaque (Macaca silenus) baby aged 12-18 months playing in a tree. Anamalai Tiger Reserve, Western Ghats, Tamil Nadu, India.
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Anup Shah / Lion-tailed macaque (Macaca silenus) baby aged 12-18 months playing in a tree. Anamalai Tiger Reserve, Western Ghats, Tamil Nadu, India.
Guatemalan black howler monkey (Alouatta pigra) sitting in tree howling, Community Baboon Sanctuary, Belize. Endangered species.
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Kevin Schafer / Guatemalan black howler monkey (Alouatta pigra) sitting in tree howling, Community Baboon Sanctuary, Belize. Endangered species.
Red slender loris (Loris tardigradus / lydekkerianus) Sinharaja Forest Reserve, Sri Lanka, December, Endangered
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Ian Lockwood / Red slender loris (Loris tardigradus / lydekkerianus) Sinharaja Forest Reserve, Sri Lanka, December, Endangered
Golden lion tamarin (Leontopithecus rosalia rosalia) captive in zoo. Occurs in Brazil.
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Dave Watts / Golden lion tamarin (Leontopithecus rosalia rosalia) captive in zoo. Occurs in Brazil.
Golden lion tamarin (Leontopithecus rosalia) wild, Poco das Antas Reserve, Atlantic Forest, Southeast Brazil, Critically endangered, November
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Kevin Schafer / Golden lion tamarin (Leontopithecus rosalia) wild, Poco das Antas Reserve, Atlantic Forest, Southeast Brazil, Critically endangered, November
Kirk's red colobus (Procolobus kirkii) in tree feeding, Jozani Forest Reserve, Zanzibar, Tanzania
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Pete Oxford / Kirk's red colobus (Procolobus kirkii) in tree feeding, Jozani Forest Reserve, Zanzibar, Tanzania
Ring-tailed Lemur (Lemur catta) female with infant (less than one month) portrait. Berenty Private Reserve, Madagascar. Oct 2008.
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Anup Shah / Ring-tailed Lemur (Lemur catta) female with infant (less than one month) portrait. Berenty Private Reserve, Madagascar. Oct 2008.
Ring-tailed lemur (Lemur catta) female carrying two babies. Anjaha Community Conservation Site, near Ambalavao, Madagascar.
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Bernard Castelein / Ring-tailed lemur (Lemur catta) female carrying two babies. Anjaha Community Conservation Site, near Ambalavao, Madagascar.
Western hoolock gibbon (Hoolock hoolock) female with young swinging through tree, Gibbon Wildlife Sanctuary, Assam, India, Endangered species
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Kevin Schafer / Western hoolock gibbon (Hoolock hoolock) female with young swinging through tree, Gibbon Wildlife Sanctuary, Assam, India, Endangered species
Alaotra reed / bamboo / gentle lemur (Hapalemur alaotrensis), Lake Alaotra, central Madagascar.
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Inaki Relanzon / Alaotra reed / bamboo / gentle lemur (Hapalemur alaotrensis), Lake Alaotra, central Madagascar.
Hoolock Gibbon (Hylobates hoolock) male hanging from a branch. Assam, India, February.
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Bernard Castelein / Hoolock Gibbon (Hylobates hoolock) male hanging from a branch. Assam, India, February.
Agile Gibbon (Hylobates agilis) in Tanjung Puting National Park, Borneo-Kalimatan, Indonesia.
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Inaki Relanzon / Agile Gibbon (Hylobates agilis) in Tanjung Puting National Park, Borneo-Kalimatan, Indonesia.
Golden bamboo lemur (Hapalemur aureus) feeding on bamboo, Ranomafana National Park, Madagascar. Critically Endangered species.
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Enrique Lopez-Tapia / Golden bamboo lemur (Hapalemur aureus) feeding on bamboo, Ranomafana National Park, Madagascar. Critically Endangered species.
Red ruffed lemur (Varecia variegata ruber) Captive, the Netherlands. Endangered.
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Edwin Giesbers / Red ruffed lemur (Varecia variegata ruber) Captive, the Netherlands. Endangered.
Lac Alaotra bamboo lemur juvenile {Hapalemur griseus alaotrensis} Madagascar Lack
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Rod Williams / Lac Alaotra bamboo lemur juvenile {Hapalemur griseus alaotrensis} Madagascar Lack
Banded Leaf Monkey / Sumatran Surili (Presbytis melalophos) feeding. Captive. Endemic to central and south Sumatra. Endangered. UK, June.
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Rod Williams / Banded Leaf Monkey / Sumatran Surili (Presbytis melalophos) feeding. Captive. Endemic to central and south Sumatra. Endangered. UK, June.
Western lowland gorilla (Gorilla gorilla gorilla) female 'Malui' walking through a cloud of butterflies she has disturbed in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Repu...
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Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Malui' walking through a cloud of butterflies she has disturbed in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Repu...
Golden monkey (Rhinopithecus roxellana) females sitting close together with baby inbetween, Qinling Mountains, China.
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Cyril Ruoso / Golden monkey (Rhinopithecus roxellana) females sitting close together with baby inbetween, Qinling Mountains, China.
Western lowland gorilla (Gorilla gorilla gorilla) twin babies age 45 days resting on mother's chest, one suckling. captive, occurs in Central Africa. Critically endangered.
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Edwin Giesbers / Western lowland gorilla (Gorilla gorilla gorilla) twin babies age 45 days resting on mother's chest, one suckling. captive, occurs in Central Africa. Critically endangered.
Golden-crowned Sifaka (Propithecus tattersalli) leaping through forest canopy. Forests adjacent to the village of Andranotsimaty, near Daraina, northern Madagascar. Critically endangered species.
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Nick Garbutt / Golden-crowned Sifaka (Propithecus tattersalli) leaping through forest canopy. Forests adjacent to the village of Andranotsimaty, near Daraina, northern Madagascar. Critically endangered species.
Two male Mountain Gorilla (Gorilla beringei) facing up and chest-beating in a dominance / hierarchy behaviour. Rwanda, Africa
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Andy Rouse / Two male Mountain Gorilla (Gorilla beringei) facing up and chest-beating in a dominance / hierarchy behaviour. Rwanda, Africa
Golden Langur (Trachypithecus / Presbytis geei) perching in a tree seen through dense foliage. Endangered. Assam, India, September.
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Sandesh Kadur / Golden Langur (Trachypithecus / Presbytis geei) perching in a tree seen through dense foliage. Endangered. Assam, India, September.
Sclater's black lemur (Eulemur macaco flavifrons) Captive, the Netherlands. Critically Endangered.
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Edwin Giesbers / Sclater's black lemur (Eulemur macaco flavifrons) Captive, the Netherlands. Critically Endangered.
Siamang Gibbon (Hylobates syndactylus) vocalising, vocal pouch inflated, captive, native to forests of Malaysia, Sumatra and Thailand
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Eric Baccega / Siamang Gibbon (Hylobates syndactylus) vocalising, vocal pouch inflated, captive, native to forests of Malaysia, Sumatra and Thailand
White collared / Grey-headed lemur (Eulemur cinereiceps) male, captive, Manombo forest, Madagascar, critically endangered
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Inaki Relanzon / White collared / Grey-headed lemur (Eulemur cinereiceps) male, captive, Manombo forest, Madagascar, critically endangered
Aye-aye (Daubentonia madagascariensis) extracting beetle grubs from wood. Endemic to Madagascar. Photographed under controlled conditions at Durrell Wildlife Conservation Trust, Jersey, UK. captive
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Nick Garbutt / Aye-aye (Daubentonia madagascariensis) extracting beetle grubs from wood. Endemic to Madagascar. Photographed under controlled conditions at Durrell Wildlife Conservation Trust, Jersey, UK. captive
Roloway Diana monkeys (Cercopithecus diana roloway) captive at Monkey Valley Zoo / Zoo La Vallee des Singes, Romagne, France. Native to Cote d'Ivoire and Ghana.
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Roland Seitre / Roloway Diana monkeys (Cercopithecus diana roloway) captive at Monkey Valley Zoo / Zoo La Vallee des Singes, Romagne, France. Native to Cote d'Ivoire and Ghana.
Tana mangabey (Cercocebus galeritus) using its hand to scoop rainwater from a hollow in a tree for drinking. Tana River Forest, South eastern Kenya.
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Fiona Rogers / Tana mangabey (Cercocebus galeritus) using its hand to scoop rainwater from a hollow in a tree for drinking. Tana River Forest, South eastern Kenya.
Purple-faced leaf monkey (Trachypithecus vetulus) Sri Lanka, endemic, endangered species.
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Ernie Janes / Purple-faced leaf monkey (Trachypithecus vetulus) Sri Lanka, endemic, endangered species.
Central American Spider Monkey (Ateles geoffroyi) orphan baby hanging from washing line.  El Mirador- Rio Azul National Park, Department of Peten, Guatemala.
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Claudio Contreras / Central American Spider Monkey (Ateles geoffroyi) orphan baby hanging from washing line. El Mirador- Rio Azul National Park, Department of Peten, Guatemala.
Montane Purple-faced Langur / Bear Monkey, (Trachypithecus vetelus monticola) in canopy. Highlands near Nuwara Eliya, endemic to Sri Lanka.
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Kevin Schafer / Montane Purple-faced Langur / Bear Monkey, (Trachypithecus vetelus monticola) in canopy. Highlands near Nuwara Eliya, endemic to Sri Lanka.
Black spider monkey (Ateles chamek) calling, captive, Peru.
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Mark Bowler / Black spider monkey (Ateles chamek) calling, captive, Peru.
White-headed black langur (Trachypithecus poliocephalus leucocephalus) mother carrying baby on cliffs Guangxi province, China, July. Critically endangered species.
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Dong Lei / White-headed black langur (Trachypithecus poliocephalus leucocephalus) mother carrying baby on cliffs Guangxi province, China, July. Critically endangered species.
White-headed langur / Golden-headed langur (Trachypithecus poliocephalus) on branch. Captive, occurs in China and Vietnam. Critically Endangered species.
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Roland Seitre / White-headed langur / Golden-headed langur (Trachypithecus poliocephalus) on branch. Captive, occurs in China and Vietnam. Critically Endangered species.
Hatinh langur (Trachypithecus hatinhensis / Trachypithecus laotum hatinhesis) portrait. Captive, occurs in Lao People's Democratic Republic and Vietnam. Endangered species.
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Roland Seitre / Hatinh langur (Trachypithecus hatinhensis / Trachypithecus laotum hatinhesis) portrait. Captive, occurs in Lao People's Democratic Republic and Vietnam. Endangered species.
Phayre's Leaf Monkey (Trachypithecus phayrei) resting on branch. Sepahijala Wildlife Sanctuary, Tripura, India.
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Bernard Castelein / Phayre's Leaf Monkey (Trachypithecus phayrei) resting on branch. Sepahijala Wildlife Sanctuary, Tripura, India.
Phayre's Leaf monkey (Trachypithecus phayrei) Gaoligongshan NP, Yunnan province, China
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Staffan Widstrand / Wild Wonders of China / Phayre's Leaf monkey (Trachypithecus phayrei) Gaoligongshan NP, Yunnan province, China
Indochinese silvered langur (Trachypithecus germaini) portrait. Endangered,  captive occurs in Thailand, Burma, Cambodia, and Vietnam.
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Roland Seitre / Indochinese silvered langur (Trachypithecus germaini) portrait. Endangered, captive occurs in Thailand, Burma, Cambodia, and Vietnam.
Golden Langur (Trachypithecus geei) feet hanging from tree, Chakrashila, Assam, India. Endangered
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Sandesh Kadur / Golden Langur (Trachypithecus geei) feet hanging from tree, Chakrashila, Assam, India. Endangered
Group of Golden langurs (Trachypithecus geei) feeding on Coconut palm (Cocos nucifera) leaf fronds, Manas, Kokrajhar, Assam, India
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Sandesh Kadur / Group of Golden langurs (Trachypithecus geei) feeding on Coconut palm (Cocos nucifera) leaf fronds, Manas, Kokrajhar, Assam, India
Female and young Francois' Langur (Trachypithecus francoisi)  captive from south west China to north east Vietnam. Endangered.
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Rod Williams / Female and young Francois' Langur (Trachypithecus francoisi) captive from south west China to north east Vietnam. Endangered.
Delacour's langur {Trachypithecus delacouri} captive, Endangered Primate Rescue Center, Cuc Phuong National Park, Vietnam
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Matthew Maran / Delacour's langur {Trachypithecus delacouri} captive, Endangered Primate Rescue Center, Cuc Phuong National Park, Vietnam
Siamang (Symphalangus syndactylus) hanging from branch over water to drink. Captive, occurs in Indonesia, Malaysia, Thailand. Endangered species.
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Roland Seitre / Siamang (Symphalangus syndactylus) hanging from branch over water to drink. Captive, occurs in Indonesia, Malaysia, Thailand. Endangered species.
Siamang Gibbon (Symphalangus syndactylus) Thrigby Hall zoo, Norfolk, England, UK, November.
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Robin Chittenden / Siamang Gibbon (Symphalangus syndactylus) Thrigby Hall zoo, Norfolk, England, UK, November.
Siberut Island Pig-tailed Snub-nosed Monkey (Simias concolor siberu) Sumatra, Indonesia.
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Roland Seitre / Siberut Island Pig-tailed Snub-nosed Monkey (Simias concolor siberu) Sumatra, Indonesia.
Yellow-breasted Capuchin monkey, or Buff-headed Capuchin monkey (Sapajus xanthosternos) in montane Atlantic Rainforest of Serra Bonita Private Natural Heritage (RPPN Serra Bonita), Camacan, Southern B...
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Luiz Claudio Marigo / Yellow-breasted Capuchin monkey, or Buff-headed Capuchin monkey (Sapajus xanthosternos) in montane Atlantic Rainforest of Serra Bonita Private Natural Heritage (RPPN Serra Bonita), Camacan, Southern B...
Buff headed capuchin (Sapajus xanthosternos) two interacting, captive, endemic to Bahia State, Brazil.
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Roland Seitre / Buff headed capuchin (Sapajus xanthosternos) two interacting, captive, endemic to Bahia State, Brazil.
Buff headed capuchin (Sapajus xanthosternos) using stone to break nuts, captive, endemic to Bahia State, Brazil.
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Roland Seitre / Buff headed capuchin (Sapajus xanthosternos) using stone to break nuts, captive, endemic to Bahia State, Brazil.
Robust Tufted Capuchin (Sapajus robustus) captive, endemic to Brazil.
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Roland Seitre / Robust Tufted Capuchin (Sapajus robustus) captive, endemic to Brazil.