Cyril Ruoso / Mountain Gorilla (Gorilla gorilla beringei) close-up portrait of a silverback in the rain, Parc National Des Volcans, Rwanda

Gavin Hellier / Church Priest holding a Lalibela Cross, Lalibela and its rock-hewn Churches rank among the greatest religio-historical sites not only in Africa, but in the Christian world, Lalibela, Ethiopia 2005. Mo...

Suzi Eszterhas / Mountain Gorilla (Gorilla gorilla beringei) silverback feeding, Parc National des Volcans, Rwanda

Bert Willaert / Sparrowhawk (Accipiter nisus) being caught by a falconer using a Red-backed shrike (Lanius collurio) as bait, Georgia, September 2011.

Nick Turner / Cotswold voluntary wardens replacing a stile, Gloucestershire, UK, June 2008.

Kristel Richard / Portrait of a traditionally dressed estancia owner mounted on his stallion, during the Festa do Colete Encarnado (Red Waistcoat Festival), a bull running festival, in Vila Franca de Xira, District of...

Ernie Janes / Snowy egret (Egretta thula) standing behind fisherman on Fort Myers beach, Florida, USA

Inaki Relanzon / Woman and girl fishing on the beach. Morondava, Madagascar, Africa.

Juergen Freund / Erik Koti holds some of his coral pieces. Cultured corals are propagated by cutting fragments of corals from mother colonies or brood stock. These coral pieces are attached to concrete mounts until it...

Robert Smith / Diver exploring a freshwater Limestone sinkhole / Cenote called 'The Pit' - a traverse to 'The Blue Abyss' with stalactites and stalagmites, Tulum, Quintana Roo, Mexico, September 2008. Model released

Solvin Zankl / Mature female Olive ridley sea turtles (Lepidochelys olivacea) arriving on the beach of Ostional, Costa Rica, Pacific coast, during an arribada / mass nesting event, November

David Woodfall / Traditional lave net fisherman (a method dating back at least 1,500 years) fishing for salmon. This Severn Estuary way of life is threatened by proposed barrage. Gloucestershire, England, July 2009, M...