Christophe Courteau / Tourists and guide using snowshoes on an ecotourism trekking holiday, Svalbard, Norway, June, 2012. Model released.

Merryn Thomas,Merryn Thomas / Catamarans taking part in the Extreme 40 catamaran racing series in Cardiff Bay, Cardiff, Wales, UK, September 2012.

Laurent Geslin / Taxidermist shop with Kudu, Oryx, Zebra and Eland hunting trophies, Namibia. 2004

Laurent Geslin / Man with serval and leopard cat skins for sale, as well as other animal products, Addis Ababa, Ethiopia

Juergen Freund / Non-diver tourists surrounded by fish, trying out the sea walker from the Sunlover Pontoon, Great Barrier Reef, Queenland, Australia, November 2012

Ben Hall / 2020VISION / Grey heron (Ardea cinerea) beneath waterfall. Ambleside, Lake District, UK, November. Highly commended, 'Habitat' category, British Wildlife Photography Awards (BWPA) competition 2012. Did you know? I...

Ernie Janes / Greylag geese (Anser anser) in flight with paraglider behind, Cley bank, Norfolk, UK

Todd Mintz / Iceberg dive, diver next to ice floe, Pond Inlet, Baffin Island, Nunavut, Canada, June

Kristel Richard / During the Festa do Colete Encarnado (Red Waistcoat Festival), a bull running festival, a traditionally dressed 'cavalheiro' delivers the 'banderilla' mounted on his Lusitano stallion in the bullring...

Kristel Richard / An Indian cowboy has lost his balance from a bronc or wild paint horse during the All Indian Rodeo, at the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August 2011, Sequence 3...

Juergen Freund / Split level image of Papuan fisherman standing on his dugout canoe over shallow corals, New Ireland, Papua New Guinea, June 2010

Christophe Courteau / Kalahari bushmen, women playing with melon, Central Kalahari Desert, Botswana, August 2008