Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) mature male 'Doyok' sitting on bench made for tourists - wide angle perspective. Pondok Tanggui, Tanjung Puting National Park, Central Kalimantan, Borneo, In...

Gerry Ellis / Western Lowland Gorilla (Gorilla gorilla gorilla) silverback, Limbe Wildlife Centre, Cameroon

Jami Tarris / Caribou (Rangifer tarandus) entering teepee for food, Khovsgol, Mongolia

Nigel Cattlin / Symptoms of Neck blast (Magnaporthe grisea) on Rice (Oryza sativa) plants in ear, Luzon, Philippines

Jeff Foott / Great Basin Bristlecone Pine (Pinus longaeva) trees, Great Basin National Park, Nevada

Tony Wu / Sperm whale (Physeter macrocephalus) mature female, Dominica.

SCOTLAND: The Big Picture / Red squirrel (Sciurus vulgaris) in mature pine forest habitat, Cairngorms National Park, Highlands, Scotland, UK, October.

SCOTLAND: The Big Picture / Red squirrel (Sciurus vulgaris) in mature pine forest habitat, Cairngorms National Park, Highlands, Scotland, UK

SCOTLAND: The Big Picture / Red Squirrel (Sciurus vulgaris) in mature pine forest habitat, Cairngorms National Park, Highlands, Scotland, UK, April.

Gerrit Vyn / Mature male California Condor (Gymnogyps californianus) used for the captive breeding program to restore this critically endangered species. Idaho. February.

Suzi Eszterhas / Common Wombat (Vombatus ursinus) foster mother, Linda Tabone, bottle feeding six month old orphaned joey, Bonorong Wildlife Sanctuary, Tasmania, Australia

Tony Wu / Killer whale / Orca (Orcinus orca) mature male in the foreground, with other mature males visible behind, Norway, January