Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) male baby 'Thor' aged 8-9 months hanging from his mother. Camp Leakey, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia. July 2010. Rehabi...

Doug Allan / Climbers on summit ridge at 6,000m, Mount Illampu, Bolivia, March 2005. Freeze Frame book plate page 137.

Eric Baccega / Giant panda (Ailuropoda melanoleuca) male, Yuan Zi, lying on climbing frame eating bamboo, captive, Zoo Parc de Beauval, France, Endangered

Roland Seitre / Hoffman's Two Toed Sloth (Choloepus hoffmanni) on climbing frame, observed by volunteers. Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Tom Struhsaker / Adult female Uganda Red Colobus Monkey (Procolobus rufomitratus tephrosceles) on a trunk she is stripping of bark to feed on. Kanyawara, Kibale National Park, Uganda.

Tom Struhsaker / Uganda Red Colobus Monkey (Procolobus rufomitratus tephrosceles) medium sized juvenile eating bark of bottle brush (Callistemon citrinus). Kanyawara, Kibale National Park, Uganda.

Tom Struhsaker / Uganda Red Colobus Monkey (Procolobus rufomitratus tephrosceles) resting between trees. Kanyawara, Kibale National Park, Uganda.

Tom Struhsaker / Uganda Red Colobus Monkey (Procolobus rufomitratus tephrosceles) adult / subadult female. Kanyawara, Kibale National Park, Uganda.

Tom Struhsaker / Sanje Mangabey Monkey (Cercocebus galeritus sanjei) juvenile feeding in canopy. Mizimu area, Sonjo Valley, Udzungwa Mountains National Park, Tanzania. Endangered species

Tom Struhsaker / Sanje Mangabey Monkey (Cercocebus galeritus sanjei) juvenile. Mizimu area, Sonjo Valley, Udzungwa Mountains National Park, Tanzania. Endangered species

Axel Gomille / Sloth Bear (Melursus ursinus) cub climbing across rocks. Karnataka, India, March.

Piotr Naskrecki / Cedarberg Katydid (Cedarbergeniana imperfecta) trio, are endemic to one of two small caves, Cederberg Wilderness Area, Western Cape, South Africa

Thomas Marent / Climbing plant on a tree, Danum Valley Conservation Area, Borneo, Malaysia

Pete Oxford / Juvenile Giant Pandas (Ailuropoda melanoleuca) on top of a wooden climbing frame, Wolong China Conservation and Research Centre for the Giant Panda within Wolong Reserve, Sichuan Province, China 2006

Pete Oxford / Juvenile Giant Pandas (Ailuropoda melanoleuca) climbing a wooden frame, Wolong China Conservation and Research Centre for the Giant Panda within Wolong Reserve, Sichuan Province, China 2006

Pete Oxford / Juvenile Giant Pandas (Ailuropoda melanoleuca) climbing a wooden frame, Wolong China Conservation and Research Centre for the Giant Panda within Wolong Reserve, Sichuan Province, China 2006

Petra Wegner / Persian Cat and four kittens on play / climbing frame

Petra Wegner / Four Persian Cats kittens on play / climbing frame

Petra Wegner / Persian Cat and four kittens on climbing / play frame

Petra Wegner / Four Persian Cat kittens on climbing / play frame

Jose B. Ruiz / Children playing on climbing frame, Playa de la Zenia, Orihuela, Alicante, Spain.

Doug Allan / Climber crossing crevasse using ladder. Khumbu Ice Fall Mount Everest, Nepal Himylayas. Freeze Frame book plate page 145.