Ben Cranke / Black-striped capuchin (Sapajus libidinosus) using rock as a tool to break open palm nut, Parnaiba Headwaters National Park, Piaui, Brazil. July.

Jabruson / 'Kith' / 'Kin' Sumatran orangutan (Pongo abelii) captive animal in walled enclosure, Perth Zoo, Western Australia, August 2001.

Florian Möllers / African Lions (Panthera leo) in a bare cage in Beijing Zoo, China, November.

Juan Carlos Munoz / Magellanic penguin (Spheniscus magellanicus) flapping its wings, with another lying down. Puerto Deseado, Patagonia, Argentina, Nov 2008

Stephen Dalton / Harlequin beetle (Acrocinus longimanus) in flight, Venezuela, South America.

Eric Baccega / Chimpanzee (Pan troglodytes) female aged 37 years, portrait. Beauval Zoo Parc, France. Captive.

Ashley Cooper / Traffic congestion on the M1 motorway at Loughborough, with a plane coming into land at East Midlands Airport. August 2005

Merryn Thomas / Squirrel monkey (Saimiri) holding fence, captive, Ecuador. November.

Denis-Huot / Okapi (Okapia johnstoni) feeding, with tongue exteneded. Captive at zoo. Occurs in Ituri Rainforest, Democratic Republic of the Congo.

Pal Hermansen / Melodius blackbird (Dives dives) attempting to catch a butterfly which is flying behind a plexiglass window, Costa Rica.

Roger Powell / Two male Ruffs (Calidris pugnax) copulating, potentially out of frustration, Pokka, Finnish Lapland. May.