Robert Valentic / Lowland blotched blue-tongue (Tiliqua nigrolutea) on a coastal bluff in the Bay of Fires region of north-eastern Tasmania, Australia, spring.

Angelo Gandolfi / Forest fire in the Cerrado during dry season. Chapada dos Veadeiros National Park, Goias, Brazil. September 2010.

Bence Mate / Grass fire at night in Pantanal, Brazil.

Denis-Huot / Bushfires in dry season on the Isuria escarpment, Masai-Mara Game Reserve, Kenya. October 2007.

Angelo Gandolfi / Scorched vegetation and rocks after fires during the peak of the dry season, Vale de Lua, Chapada dos Veadeiros National Park, Cerrado region, Goias, Brazil. Fires at the peak of the dry season, Septe...

Roy Mangersnes / Storm over the Central Kalahari Game Reserve, lightning sstrikes are the predominant cause of bush fires, Botswana, November

Jack Dykinga / Life returning after seasonal rains to burnt forest, Apache-Sitgreaves National Forest devastation of the 'Wallow Fire', Arizona, USA August 2011

Ole Jorgen Liodden / Thunderstorm and bushfire at night. Kalahari, Botswana, November.

Matthew Maran / Hikers building up a fire in their cliff-overhang cave. The West Coast Trail, Pacific Rim National Park, Vancouver Island, Canada, September, Model released

Matthew Maran / A hiker building a fire at his campsite. The West Coast Trail, Pacific Rim National Park, Vancouver Island, Canada, September 2010. Model released.

Jerry Monkman / Man stoking the fire in the sap evaporator of the sugar house at Sugarbush Farm in Woodstock, Vermont, USA, April 2008.

Jack Dykinga / Trunk of Giant Sequoia tree {Sequoiadendron giganteum} showing scars from ancient fires, Sequoia NP, California, USA