Anup Shah / Olive baboon (Papio anubis) male approaching with curiosity - remote camera. Masai Mara National Reserve, Kenya.

Staffan Widstrand / Wild Wonders of China / Portrait of a Golden snub-nosed monkey (Rhinopithecus roxellana) full frame of the face, Foping Nature Reserve, Shaanxi, China. Endangered species

Cyril Ruoso / Golden monkey (Rhinopithecus roxellana) male showing canine teeth, Qinling Mountains, China.

Jabruson Motion / THIS VIDEO CLIP WILL BE AVAILABLE TO VIEW ONLINE SOON. TO VIEW NOW, PLEASE CONTACT US. -Hunter putting on a rucksack filled with bushmeat for transport to market, including Blue duiker (Cephalophus mo...

Jabruson Motion / THIS VIDEO CLIP WILL BE AVAILABLE TO VIEW ONLINE SOON. TO VIEW NOW, PLEASE CONTACT US. -Panning shot of bushmeat, including Blue duiker (Cephalophus monticola) and Putty-nosed monkey (Cercopithecus n...

Jabruson Motion / THIS VIDEO CLIP WILL BE AVAILABLE TO VIEW ONLINE SOON. TO VIEW NOW, PLEASE CONTACT US. -Hunters preparing bushmeat for transport to market, including Blue duiker (Cephalophus monticola) and Putty-nose...

Laurent Geslin / Skull and teeth of Blue monkey {Cercopithecus mitis}

Thomas Marent / Golden Snub-nosed Monkey (Rhinopithecus roxellana) male, Qinling Mountains, Shaanxi, China

Florian Möllers / Quinling Golden snub nosed Monkey (Rhinopitecus roxellana qinlingensis), adult male face portrait. Zhouzhi Nature Reserve, Qinling Mountains, Shaanxi, China.

Bernard Castelein / Zanzibar Red Colobus (Procolobus kirkii) jumping through the air, Jozani Chwaka Bay NP, Zanzibar, Tanzania

Bernard Castelein / Blue monkey family group {Cercopithecus mitis} Kakamega forest, Kenya

Jabruson / Blue monkey face {Cercopithecus mitis} Virunga NP, Democratic Republic of Congo.

Ernie Janes / Young Black headed spider monkey (Ateles fusciceps) with blue eyes, portrait, captive. Occurs in Central and South America. Critically endangered species.

Anup Shah / Olive baboon (Papio anubis) male, taken with remote camera. Masai Mara National Reserve, Kenya.

Anup Shah / Olive baboon (Papio anubis) male approaching with curiosity - remote camera. Masai Mara National Reserve, Kenya.

Anup Shah / Olive baboon (Papio anubis) male approaching with curiosity - remote camera. Masai Mara National Reserve, Kenya.

Sandesh Kadur / Blue monkey (Cercopithecus mitis) portrait. Lake Manyara National Park, Tanzania.

Staffan Widstrand / Wild Wonders of China / Portrait of a Golden snub-nosed monkey (Rhinopithecus roxellana) screaming and showing its teeth, Foping Nature Reserve, Shaanxi, China. Endangered species

Staffan Widstrand / Wild Wonders of China / Portrait of a Golden snub-nosed monkey (Rhinopithecus roxellana) screaming and showing its teeth in Foping Nature Reserve, Shaanxi, China. Endangered species

Staffan Widstrand / Wild Wonders of China / Portrait of a Golden snub-nosed monkey (Rhinopithecus roxellana) screaming, showing its teeth in Foping Nature Reserve, Shaanxi, China. Endangered species

Staffan Widstrand / Wild Wonders of China / Golden snub-nosed monkey (Rhinopithecus roxellana) female with very young baby, Foping Nature Reserve, Shaanxi, China. Endangered species

Staffan Widstrand / Wild Wonders of China / Portrait of a male Golden snub-nosed monkey (Rhinopithecus roxellana) Foping Nature Reserve, Shaanxi, China. Endangered species

Staffan Widstrand / Wild Wonders of China / Golden snub-nosed monkey (Rhinopithecus roxellana) female with baby suckling, Foping Nature Reserve, Shaanxi, China. Endangered species

Staffan Widstrand / Wild Wonders of China / Golden snub-nosed monkey (Rhinopithecus roxellana) female with very young baby in Foping Nature Reserve, Shaanxi, China. Endangered species

Staffan Widstrand / Wild Wonders of China / Golden snub-nosed monkey (Rhinopithecus roxellana) portrait, Foping Nature Reserve, Shaanxi, China. Endangered species

Fiona Rogers / Southern plains grey langurs (Semnopithecus dussumieri). sitting on granite boulders . Hampi, Karnataka, India.

Anup Shah / Bonnet macaque (Macaca radiata) male profile portrait . Hampi, Karnataka, India.

Anup Shah / Southern plains grey langurs (Semnopithecus dussumieri). sitting on granite boulders . Hampi, Karnataka, India.

Rhonda Klevansky / Samango Monkey (Cercopithecus mitis erythrarchus). Cape Vidal, iSimangaliso Wetland Park UNESCO World Heritage Site, and RAMSAR Wetland. KwaZulu Natal, South Africa,

Rhonda Klevansky / Samango Monkey (Cercopithecus mitis erythrarchus) albino, Cape Vidal, iSimangaliso Wetland Park UNESCO World Heritage Site, and RAMSAR Wetland. KwaZulu Natal, South Africa.

Rhonda Klevansky / Samango Monkey (Cercopithecus mitis erythrarchus) Cape Vidal, Isimangaliso Wetland Park UNESCO World Heritage Site, and RAMSAR Wetland. KwaZulu Natal, South Africa,

Rhonda Klevansky / Samango monkey (Cercopithecus mitis erythrarchus) Cape Vidal, Isimangaliso Wetland Park UNESCO World Heritage Site, and RAMSAR Wetland. KwaZulu Natal, South Africa.

Lucas Bustamante / Giant monkey frog / Blue and yellow frog (Phyllomedusa bicolor) on branch, Tambopata, Madre de Dios, Peru.

John Cancalosi / Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) adult female grooming unrelated juvenile, Kakamega forest, Kenya.

John Cancalosi / Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) adult female with unrelated juvenile, Kakamega forest, Kenya.

John Cancalosi / Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) adult, Kakamega forest, Kenya.

John Cancalosi / Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) feeding, Kakamega forest, Kenya.

John Cancalosi / Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) Kakamega forest, Kenya.

John Cancalosi / Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) Kakamega forest, Kenya.

John Cancalosi / Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) Kakamega forest, Kenya.

John Cancalosi / Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) mother and young, Kakamega forest, Kenya.

Anup Shah / Zanzibar sykes monkey (Cercopithecus mitis albogularis) using an electricity wire to cross a road . Jozani-Chwaka Bay National Park, Zanzibar, Tanzania. May.

Fiona Rogers / Zanzibar sykes monkey (Cercopithecus mitis albogularis) portrait . Jozani-Chwaka Bay National Park, Zanzibar, Tanzania. May.

Anup Shah / Zanzibar red colobus (Procolobus kirkii) and Zanzibar sykes monkey (Cercopithecus mitis albogularis) sitting together on a palm tree. Jozani-Chwaka Bay National Park, Zanzibar, Tanzania. May.

Anup Shah / Zanzibar sykes monkeys (Cercopithecus mitis albogularis) on a palm tree . Jozani-Chwaka Bay National Park, Zanzibar, Tanzania. May.

Sandesh Kadur / Arunachal macaque (Macaca munzala) on roof of building, Tawang, Arunchal Pradesh, Himalayas, India.

Richard Du Toit / Samango Monkey (Cercopithecus mitis) Isimangaliso Wetland Park, KwaZulu-Natal Province, South Africa

Rhonda Klevansky / Samango / Blue monkey (Cercopithecus mitis) with baby, St Lucia Game Reserve, iSimangaliso Wetland Park UNESCO Natural World Heritage Site, South Africa

Rhonda Klevansky / Samango / Blue monkey (Cercopithecus mitis) St Lucia Game Reserve, iSimangaliso Wetland Park UNESCO Natural World Heritage Site, South Africa

Dave Bevan / Jay (Garrulus glandarius) and Great tit (Parus major) feeding from a peanut string, with a Blue tit (Cyanistes caeruleus) nearby, Carmarthenshire, Wales, UK, February.

Dave Bevan / Blue tits (Cyanistes caeruleus) fighting over unshelled peanuts on a string, Carmarthenshire, Wales, UK, November.

Frederique Olivier / Blue monkey (Cercopithecus mitis) feeding in a tree, Lake Manyara NP, Tanzania.

Frederique Olivier / Blue monkey (Cercopithecus mitis) feeding in a tree, Lake Manyara NP, Tanzania.

Thomas Marent / Red Blue White Monkey Hopper (Opaon varicolor), Las Tangaras Bird Reserve, Colombia

Cyril Ruoso / Blue monkey (Cercopithecus mitis) up in tree, La Ruvubu National Park, Burundi.

Cyril Ruoso / Blue monkey (Cercopithecus mitis) up in tree, La Ruvubu National Park, Burundi.

Cyril Ruoso / Blue monkey (Cercopithecus mitis) up in tree, La Ruvubu National Park, Burundi.

Cyril Ruoso / Blue monkey (Cercopithecus mitis) up in tree, La Ruvubu National Park, Burundi.

Cyril Ruoso / Blue monkey (Cercopithecus mitis) up in tree, La Ruvubu National Park, Burundi.

Cyril Ruoso / Blue monkey (Cercopithecus mitis) in tree top, La Ruvubu National Park, Burundi, Non-ex.

Suzi Eszterhas / Cotton-top Tamarin (Saguinus oedipus) conservation, eco-mochil bags, traditional style bags made out of littered plastic bags, which are then sold to tourists to raise money for tamarin conservation,...

Cyril Ruoso / Golden monkey (Rhinopithecus roxellana) adult male and female huddled together, Qinling Mountains, China.

David Pattyn / Blue monkey (Cercopithecus mitis) female with youngster, Jozani Forest, Jozani Chwaka Bay NP, Zanzibar, Tanzania, August.

Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) juvenile peering over the top of a cliff. Jodhpur, Rajasthan, India. March.

Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) juvenile jumping. Jodhpur, Rajasthan, India. March.

Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) adolescent walking along cliff top - silhouette. Jodhpur, Rajasthan, India. March.

Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) silhouetted jumping. Jodhpur, Rajasthan, India. March.

Anup Shah / Southern plains grey langur / Hanuman langurs (Semnopithecus dussumieri) silhouetted sitting back to back on a cliff top. Jodhpur, Rajasthan, India. March.

Anup Shah / Southern plains grey langur / Hanuman langurs (Semnopithecus dussumieri) playing on cliff tops - silhouette . Jodhpur, Rajasthan, India. March.

Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) silhouetted jumping. Jodhpur, Rajasthan, India. March.

Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) silhouetted jumping. Jodhpur, Rajasthan, India. March.

Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) jumping. Jodhpur, Rajasthan, India. March.

Edwin Giesbers / Barbary macaque (Macaca sylvanus) two sitting silhouetted on rocks, Gibraltar Nature Reserve, Gibraltar,

Edwin Giesbers / Barbary macaque (Macaca sylvanus) sitting, silhouetted against blue sky. Gibraltar Nature Reserve, Gibraltar, June.

Thomas Marent / Stuhlmann's Blue Monkey (Cercopithecus mitis stuhlmanni), Kakamega Forest Reserve, Kenya

Thomas Marent / Stuhlmann's Blue Monkey (Cercopithecus mitis stuhlmanni), Kakamega Forest Reserve, Kenya

Thomas Marent / Stuhlmann's Blue Monkey (Cercopithecus mitis stuhlmanni) feeding on leaves, Kakamega Forest Reserve, Kenya

Thomas Marent / Stuhlmann's Blue Monkey (Cercopithecus mitis stuhlmanni), Kakamega Forest Reserve, Kenya

Thomas Marent / Savanah Monkey (Chlorocebus aethiops) male in defensive posture, Awash National Park, Ethiopia

Thomas Marent / Savanah Monkey (Chlorocebus aethiops) male, Awash National Park, Ethiopia

Roland Seitre / Moustached monkey (Cercopithecus cephus) captive, occurs in Central Africa.

Roland Seitre / Samango monkey (Cercopithecus mitis labiatus) in tree South Africa, Endemic.

Roland Seitre / Kolb's white-collared monkey (Cercopithecus mitis kolbi) in tree, Kenya.

Roland Seitre / Moustached monkey (Cercopithecus erythrotis) portrait whilst feeding, captive, occurs in Cameroon, Equatorial Guinea, and Nigeria.

Anup Shah / Lowland Sykes monkey (Cercopithecus mitis albotorquatus) feeding, Tana River Forest, South eastern Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) female portrait. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) peeling away bark and lichen looking for ants and insects to eat. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) juvenile peering around a tree trunk. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) baby aged 9-12 months hanging down to reach leaves to feed on. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) baby aged 9-12 months feeding on a vine. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) female 'Camille' retrieving food from her cheek pouches which are exceptionally large. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) alpha male 'PH' resting in a tree - portrait. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) juvenile sitting portrait. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) female sitting on the branch of a tree. Kakamega Forest South, Western Province, Kenya.

Fiona Rogers / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) baby aged 9-12 months feeding on a flower from a Morning Glory plant . Kakamega Forest South, Western Province, Kenya.