XI ZHINONG / Phayre's leaf monkey (Trachypithecus phayrei), wild animal in tree, Endangered species, Gaoligong Mountains of Yunnan Province, China.

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus) two youngsters chase each other up a sloping tree. Bandhavgarh National Park, India.

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus) youngster in mid-air leaping from a sloping tree trunk to a nearby tree sapling. Bandhavgarh National Park, India. Non-ex.

Mary McDonald / Northern Plains grey Langur (Semnopithecus entellus) baby holding onto mother, Bandhavgarh National Park, Madhya Pradesh, India

Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) close up face profile, Sawai Modhopur, Rajasthan, India

Bernard Castelein / Southern plains grey langur (Semnopithecus entellus / Presbytis entellus) tiny juvenile, Jodhpur, Rajasthan India

Mary McDonald / Hanuman Langur / Northern Plains Grey Langur (Semnopithecus entellus) baby playing with a stick by its mother. Kanha National Park, Madhya Pradesh, India.

Mary McDonald / Hanuman Langur / Northern Plains Grey Langur (Semnopithecus entellus) baby playing with a stick by its mother. Kanha National Park, Madhya Pradesh, India.

Mary McDonald / Hanuman Langur / Northern Plains Grey Langur (Semnopithecus entellus) mother with baby in tree. Kanha National Park, Madhya Pradesh, India.

Mary McDonald / Hanuman Langur / Northern Plains Grey Langur (Semnopithecus entellus) in leafless tree top. Kanha National Park, Madhya Pradesh, India.

Laurent Geslin / Two Southern plains grey / Hanuman langur {Semnopithecus dussumieri} females suckling young, Sariska NP, India

Bernard Castelein / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} drinking, Sariska NP, Rajasthan, India

Anup Shah / Young Southern plains grey / Hanuman langurs {Semnopithecus dussumieri} playing, jumping up for leaves, Ranthambore National Park, Rajasthan, India NOT FOR STOCK SALE, PLEASE CHECK WITH TIM A BEFORE...

Suzi Eszterhas / Thomas's leaf monkey (Presbytis thomasi) looking down from tree, North Sumatra, Indonesia

Sandesh Kadur / Golden Langur (Trachypithecus / Presbytis geei) perching in a tree seen through dense foliage. Endangered. Assam, India, September.

Rod Williams / Francois' Langur (Trachypithecus francoisi) captive, from Vietnam, Laos and Southern China, Endangered

Thomas Marent / Dusky Leaf Monkey (Trachypithecus obscurus) young, Khao Sam Roi Yot National Park, Thailand

Ian Lockwood / Purple-Faced Langur (Trachypithecus vetulus) in a suburban evergreen forest environment. Endemic, Sri Lanka, Endangered species

Matthew Maran / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} jumping towards tree trunk, Bandhavgarh National Park, Madya Pradesh, India

Bernard Castelein / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} family group on rock, Rajasthan, India

Nick Garbutt / Female Silvered langur (Trachypithecus cristatus / Presbytis cristata) carrying young infant. Bako NP, Sarawak, Borneo, Malaysia

Tony Heald / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} baby reaching up to mother's face, Bandhavgarh NP, Madhya Pradesh, India, March

Bernard Castelein / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} with baby, Madhav NP, Madhya Pradesh, India

Matthew Maran / Tufted grey langur {Semnopithecus priam thersites} group amongst the Pollunaruwa ruins, Sri Lanka

Jean-Pierre Zwaenepoel / Contemplating Southern plains grey / Hanuman langur {Semnopithecus dussumieri} sitting in tree, Kumbhalgarh Wildlife Sanctuary, Rajasthan, India. WPY compeition 2005 winner.

Jean-Pierre Zwaenepoel / Hindu man feeding troop of Southern plains grey / Hanuman langur {Semnopithecus dussumieri} nr Jodhpur, Rajasthan, India.

Jean-Pierre Zwaenepoel / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} adult females embracing, Thar desert, Rajasthan, India

Jean-Pierre Zwaenepoel / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} juvenile standing, looking out, Thar desert, Rajasthan, India

Jean-Pierre Zwaenepoel / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} mother and young sitting on roof, Jodhpur, India

Jean-Pierre Zwaenepoel / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} group sunning, Thar desert, Rajasthan, India

Jean-Pierre Zwaenepoel / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} two adolescents sitting, Thar desert, Rajasthan, India Not available for ringtone/wallpaper use.

Jean-Pierre Zwaenepoel / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} group grooming, India

Jean-Pierre Zwaenepoel / Southern plains gray / Hanuman langur {Semnopithecus dussumieri} group sitting in sun, Thar desert, Rajasthan, India

Elio Della Ferrera / Montane purple faced langur {Presbytis senex monticola} dominant male. Sri Lanka. Endemic endangered species.

Elio Della Ferrera / Golden leaf monkey / langur {Presbytis geei} adult male + juvenile, Assam, India

Elio Della Ferrera / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} sitting on arm of statue of Buddha. Sri Lanka

Anup Shah / Golden langur {Presbytis geei} sticking its tongue out, India

Toby Sinclair / People impersonating Langur monkeys at fruit stall. New Delhi, India, street theatre

Anup Shah / Young Southern plains grey / Hanuman langur {Semnopithecus dussumieri} playing, Ranthambore NP, India

Anup Shah / Young Southern plains grey / Hanuman langur {Semnopithecus dussumieri} playing, Ranthambore NP, India

Anup Shah / Douc langur parent with baby {Pygathrix nemaeus} occurrs Vietnam - captive

Anup Shah / Troop of Southern plains grey / Hanuman langur {Semnopithecus dussumieri} feeding, Ranthambhore NP, Rajasthan, India

Anup Shah / Ebony langur climbing. Endangered - native to Java, Indonesia

Anup Shah / Ebony langur climbing {Trachypithecus auratus} Endangered species native to Java, Indonesia

Anup Shah / Douc langur monkey holding baby. Endangered species native to Vietnam

Anup Shah / Douc langur monkey family group. Endangered species native to Vietnam

Anup Shah / Douc langur monkey with baby. Endangered species native to Vietnam.

Bernard Walton / Silvered langur (Silver leaf) monkey {Presbytis cristata}, Malaysia

Bernard Castelein / Two Southern plains grey / Hanuman langur {Semnopithecus dussumieri} drinking, Sariska NP, Rajasthan, India

Bernard Castelein / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} pregnant female on temple Mandore temple, Jodhpur, India

Pete Oxford / Douc langur {Pygathrix nemaeus} occurrs in Laos and Vietnam

Anup Shah / Golden langur {Presbytis geei} portrait, India

Anup Shah / Golden langur {Presbytis geei} face on head portrait, India Not available for ringtone/wallpaper use.

Anup Shah / Douc langur with young {Pygathrix nemaeus}

Bernard Castelein / Southern plains grey / Hanuman langur {Semnopithecus dussumieri} with young, Ranthambore NP, India

Rod Williams / Head portrait of male Douc Langur, endangered species occurs Vietnam

Rod Williams / Head portrait of male Douc Langur, endangered species, occurs Vietnam

XI ZHINONG / Phayre's leaf monkey (Trachypithecus phayrei), wild animal in tree, Endangered species, Gaoligong Mountains of Yunnan Province, China.

XI ZHINONG / Phayre's leaf monkey (Trachypithecus phayrei), wild animal in tree, Endangered species, Gaoligong Mountains of Yunnan Province, China.

XI ZHINONG / Phayre's leaf monkey (Trachypithecus phayrei), wild animals in tree, Endangered species, Gaoligong Mountains of Yunnan Province, China.

XI ZHINONG / Phayre's leaf monkey (Trachypithecus phayrei), wild animal in tree, Endangered species, Gaoligong Mountains of Yunnan Province, China.

XI ZHINONG / Phayre's leaf monkey (Trachypithecus phayrei), wild animal in tree, Endangered species, Gaoligong Mountains of Yunnan Province, China.

Suzi Eszterhas / Maroon leaf monkey / Langur (Presbytis rubicunda) sitting in tree, Danum Valley Conservation Area, Sabah, Borneo, Malaysia

Aflo / Northern plains grey langur (Semnopithicus entellus) group resting by trees, Bandhavgarh National Park, India

David Pattyn / Hanuman / Northern Plains Grey Langur (Semnopithecus entellus) family resting in roots of Banyan tree. Ranthabore National Park, India, June.

Mark Carwardine / Javan langur / leaf monkey (Trachypithecus / Presbytis auratus) sticking out tongue, Endangered, captive, from Indonesia, Bristol Zoo Not available for ringtone/wallpaper use.

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus) adult female sitting. Bandhavgarh National Park, India.

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus). A youngster prepares to leap from the controversial fence that now surrounds large sections of Bandhavgarh National Park, to a tree branch h...

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus) adult bounds across open ground. Bandhavgarh National Park, India.

Andrew Parkinson / Bengal Tiger (Panthera tigris) sub-adult, about 16-19 months old, running through a meadow with a Hanuman langur kill. Endangered. Bandhavgarh National Park, India. Non-ex.

Andrew Parkinson / Bengal Tiger (Panthera tigris) sub-adult, about 16-19 months old, running through a meadow with a Hanuman langur kill. Endangered. Bandhavgarh National Park, India. Non-ex.

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus) adult sitting in light on forest track. Bandhavgarh National Park, India. Non-ex.

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus) adult female appears to sit in contemplative mood. Bandhavgarh National Park, India. Non-ex.

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus) adult, backlit by evening sunlight, feeding in an open meadow. Bandhavgarh National Park, India. Non-ex.

David Pattyn / Northern Plains gray / Hanuman Langur (Semnopithecus entellus) family resting in Banyan tree whilst playful juvenile is swinging at tail of adult, Ranthambore National Park, Rajasthan, India

David Pattyn / Northern Plains gray / Hanuman Langur (Semnopithecus entellus) three langurs resting in between the roots of a Banyan tree that is growing on steep mountain side, Ranthambore National Park, Rajasthan,...

David Pattyn / Northern Plains grey / Hanuman Langur (Semnopithecus entellus) drinking at a tap for pilgrims at Ranthambore fort, Ranthabore National Park, Rajasthan, India

Bernard Castelein / Capped Langur (Trachypithecus pileatus) on branch. Sepahijala Wildlife Sanctuary, Tripura, India.

Shibai Xiao / White headed langur (Presbytis leucocephalus) on rocks with their young, Guangxi Province, China.

Rod Williams / Southern mitered langur (Presbytis melalophos mitrata) South East Sumatra, endangered species. Captive.

Sandesh Kadur / Nilgiri Langur (Trachypithecus johnii) feeding in tree, endemic to the Western Ghats south of Coorg, the Nilgiri Langur is one of nearly 16 species of primate found in India.

Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) group sitting in Banyan tree, Sawai Modhopur, Rajasthan India

Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) family troop sitting on rock face, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) group huddled together, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) two adults sitting, one with juvenile, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur (Semnopithecus entellus / Presbytis entellus) tiny juvenile on rock, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) adult cuddling young, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) very small baby, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) grooming juvenile, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur (Semnopithecus entellus / Presbytis entellus) group drinking from village tap, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur (Semnopithecus entellus / Presbytis entellus) drinking from village tap, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur (Semnopithecus entellus / Presbytis entellus) drinking from village tap, Jodhpur, Rajasthan India

Bernard Castelein / Southern plains grey langur (Semnopithecus entellus / Presbytis entellus) group drinking from village tap, Jodhpur, Rajasthan India

Rod Williams / Francois' langur (Trachypithecus francoisi) captive, from Vietnam, Laos, SW China, Endangered

Mary McDonald / Hanuman Langur / Northern Plains Grey Langur (Semnopithecus entellus) baby sitting with its mother. Kanha National Park, Madhya Pradesh, India.

Michael W. Richards / Hanuman / Northern plains grey langur monkey and young (Semnopithecus entellus) India