Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years crossing a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic

Jabruson Motion / Male Western gorilla (Gorilla gorilla) displaying, throws clump of grass into the air, runs through bai and hits other gorilla, Maya Nord Bai, Odzala-Kokoua National Park, Cuvette-Ouest Region, Republ...

Jabruson Motion / Silverback Western lowland gorilla (Gorilla gorilla gorilla) feeding on grass in forest bai, Odzala-Kokoua National Park, Cuvette-Ouest, Republic of Congo.

Jabruson Motion / Silverback Western lowland gorilla (Gorilla gorilla gorilla) leaving bai for forest with female and infant, crossing river bipedally, Odzala-Kokoua National Park, Cuvette-Ouest, Republic of Congo.

Jabruson Motion / Close up of a female Western lowland gorilla (Gorilla gorilla gorilla) female feeding on grasses in bai, Odzala-Kokoua National Park, Cuvette-Ouest, Republic of Congo.

Jabruson Motion / Close-up of a blackback Western lowland gorilla (Gorilla gorilla gorilla) feeding, Odzala-Kokoua National Park, Cuvette-Ouest, Republic of Congo.

Jabruson Motion / Female Western lowland gorilla (Gorilla gorilla gorilla) with very young infant, interacts with another gorilla, Odzala-Kokoua National Park, Cuvette-Ouest, Republic of Congo.

Jabruson Motion / Female Western lowland gorilla (Gorilla gorilla gorilla) feeding with blackback in forest bai, Odzala-Kokoua National Park, Cuvette-Ouest, Republic of Congo.

Edwin Giesbers / Western lowland gorilla (Gorilla gorilla gorilla) baby resting on mother's back, captive, occurs in Central Africa. Critically endangered.

Edwin Giesbers / Western lowland gorilla (Gorilla gorilla gorilla) twin babies age 45 days, resting on mother's chest, captive, occurs in Central Africa. Critically endangered.

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.

Edwin Giesbers / Western lowland gorilla (Gorilla gorilla gorilla) twin babies age 45 days sleeping in mother's arms, captive, occurs in Central Africa. Critically endangered.

Edwin Giesbers / Western lowland gorilla (Gorilla gorilla gorilla) twin babies age 45 days sleeping on mother's chest, captive, occurs in Central Africa. Critically endangered.

Edwin Giesbers / Western lowland gorilla (Gorilla gorilla gorilla) twin babies age 45 days resting side by side in mother's arms, captive, occurs in Central Africa. Critically endangered.

Edwin Giesbers / Western lowland gorilla (Gorilla gorilla gorilla) baby riding on mother's back, captive, occurs in Central Africa. Critically endangered.

Cyril Ruoso / Western lowland gorilla (Gorilla gorilla gorilla) female suckling baby, captive at Monkey Valley Zoo. Non-ex

Jabruson Motion / Dr Ken Cameron monitoring 'Ngobo', a darted blackback Western gorilla (Gorilla gorilla), anaesthetized to remove a wire snare from its wrist, Mongambe, Dzanga-Ndoki National Park, Sangha-Mbaere Prefec...

Jabruson / Angelique Todd with veterinarians during the anaesthesia of 'Blackback' Western Gorilla (Gorilla gorilla) 'Ngobo'. Gorilla anaesthetised by veterinary team in order to remove wire snare from wrist. Mo...

Jabruson / Western Gorilla (Gorilla gorilla) silverback skull with butterfly (Belenois theszi). Gorilla diedd from the Ebola Virus, which killed 128 people in the region in 2003 and in 2005 killed 95% of the Gor...

Jabruson Motion / Close-up of a young Western gorilla (Gorilla gorilla) 'Tembo', member of the 'Makumba' group, breaking open a termite nest and eating termites, Bai Hokou, Dzanga-Ndoki National Park, Sangha-Mbaere Pre...

Jabruson Motion / Close-up of a young Western gorilla (Gorilla gorilla) 'Tembo', member of the 'Makumba' group, breaking open a termite nest and eating termites, Bai Hokou, Dzanga-Ndoki National Park, Sangha-Mbaere Pre...

Jabruson Motion / Tracking shot past a tree with hanging skulls to a pile of smoked primate bushmeat including Western lowland gorilla (Gorilla gorilla gorilla) hands, Bayanga, Dzanga-Ndoki National Park, Central Afric...

Jabruson Motion / Western lowland gorilla (Gorilla gorilla gorilla) silverback 'Makumba' eating African breadfruit (Treculia africana), Bai Hokou, Dzanga-Ndoki National Park, Central African Republic, May 2012.

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) infant 'Sopo' aged 18 months riding on his mother 'Mopambi's' back, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. D...

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years head and shoulders portrait, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African R...

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years head and shoulders portrait, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. Dec...

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Tembo' aged 4 years crossing a river bi-pedally, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. Decem...

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) female 'Malui' carrying her stillborn infant in her arms, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 20...

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years standing with sub-adult male 'Kunga' aged 13 years in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Cent...

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) infant 'Sopo' aged 18 months head and shoulders portrait, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 20...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years feeding on fruit, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 201...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years peering through vegetation, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Re...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years drinking in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. November 2011.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult male 'Kunga' aged 13 years drinking in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. November 2011.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged about 32 years scratching his head, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Rep...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years resting on a tree buttress, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. Nove...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years feeding on sedge grasses in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. No...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile female 'Bokata' aged 6 years feeding on sedge grasses in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. Nov...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Mopambi' sitting with her playful infant 'Sopo' aged 18 months, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republi...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Mopambi' sitting with her playful infant 'Sopo' aged 18 months, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republi...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Mopambi' sitting with her playful infant 'Sopo' aged 18 months, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republi...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Tembo' aged 4 years feeding on fruit, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. November 2011.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Tembo' aged 4 years stripping the bark of a spiny branch to feed on the core, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Ce...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) rear view of dominant male Silverback 'Makumba' aged approx 32 years standing on a forest track, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years feeding on termites from a nest he has broken open, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Centra...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years feeding on sedge grasses in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Re...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Tembo' aged 4 years crossing a river in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2011.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Mopambi' carrying her infant 'Sopo' aged 18 months on her back crossing a river in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Cent...