Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) female 'Gremlin' aged 40 years with her infant son 'Gizmo' aged 1-2 years sitting between two trees. Gombe National Park, Tanzania.

Mark Bowler / Rear view of Margay (Leopardus wiedii) walking along branch, semi-free-ranging, Peruvian Amazon, Peru

Nick Garbutt / Adult Western / Horsfield's tarsier (Tarsius bancanus) in forest understorey at night. Lowland dipterocarp rainforest, Danum Valley, Sabah, Borneo.

Roland Seitre / Brown-throated Three-toed Sloth (Bradypus variegatus) scratching, Bolivia Captive, native to Central and South America.

Andy Rouse / Mountain gorilla (Gorilla beringei) blackback male in rainforest, in front of Sabinyo volcano, Volcanoes NP, Virunga mountains, Rwanda (non-ex)

Anup Shah / Bonobo (Pan paniscus) group walking along the edge of a lake, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) mature male sitting on a fallen tree, Tangkoko National Park, Sulawesi, Indonesia.

Tim Laman / Paradise tree snake (Chrysopelea paradisi) on tree branch preparing to leap into the air to cross between trees, Gunung Palung National Park, Borneo, West Kalimantan, Indonesia.

Nick Garbutt / Early morning mist over the rainforest canopy. Temburong National Park, Brunei, Borneo. February 2009.

Juan Manuel Borrero / Catesby's snail-eating snake (Dipsas catesbyi) on Heliconia plant, Pacaya Samiria National Reserve, Amazon Basin, Loreto, Peru

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...

Jabruson / Forest butterflies (Phalanta eurytis) puddling to extract minerals from charcoal deposit of tree burnt after lightening strike. Lokoue Bai camp. Odzala-Kokoua National Park, Republic of Congo.