Jack Dykinga / Charred remains of Aspen-fir forest near Hannagan's Meadow, at sunset with fireweeds growing in profusion amidst felled trees, Apache-Sitgreaves National Forest, Arizona, USA September 2011

Alex Mustard / Spotted scorpionfish (Scorpaena plumieri) lying motionless and camouflaged in soft corals. West Palm Beach, Gulf Stream, West Atlantic Ocean, Florida, USA.

Ernie Janes / Conference Pear tree (Pyrus communis) growing against wall in garden, UK

Marie Read / Tree covered with rime ice standing in snow-covered field, Ithaca, New York, USA. January 2010.

Juergen Freund / Split level image of shallow bleaching corals at sunset, New Ireland, Papua New Guinea

Juergen Freund / View of sea surface through a Whip coral forest (Junceella sp) Kimbe Bay, West New Britain, Papua New Guinea

Juergen Freund / Sea pen octocoral (Veretillum sp) with polyps out, feeding, Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Hard brain coral (Platygyra sp) half covered with a pink algae, Moluccas Islands, Indo-pacific

Juergen Freund / Split level of shallow bleaching corals and island, New Ireland, Papua New Guinea, June 2010

Juergen Freund / Pygmy seahorse (Hippocampus bargibanti) camouflaged on coral (Muricela sp). Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Split-level shot of Fan coral (Gorgonacea) in the shallows with boat shilouetted against the sunset in the background. North Raja Ampat, West Papua, Indonesia, February 2010

Daniel Heuclin / Upland Cotton (Gossypium hirsutum) with maturing bolls. Near Buckeye, Arizona, USA, September.