Solvin Zankl / Illuminated netdevil (Linophryne arboritera), female specimen, from deepsea Atlantic Ocean near Cape Verde at a depth of 1900m.

Jack Dykinga / Frost damaged Saguaro cactus (Carnegiea gigantea) with sunset light shining through limbs. South Maricopa Mountains Wilderness, Arizona, USA, March 2015.

Steven Kazlowski / Polar bear (Ursus maritimus) curious young bear approaching camera, over newly forming pack ice during autumn freeze up, Beaufort Sea, off Arctic coast, Alaska

Ben Cranke / Conifer tree bending over under weight of snow, Kuusamo, Finland. February 2011.

Mark Taylor / Red toy poodle looking up at camera an sticking out tongue.

Mark Taylor / French Bulldog sitting looking up, close up of muzzle

Hougaard Malan / Baobab trees under starry night sky. Kubu Island, Makgadikgadi pans, Botswana. May 2012.

Jean E. Roche / Woman looking into giant 'funhouse' mirror in forest, public sculpture by Rob Mullholland, Port saint Louis du Rhone, Camargue, France, May 2013. Editorial Use only. Credit Jean Roche / Le Citron Jaun...

Barrie Britton / Conifer tree bent under the weight of snow, Kuntivaara, Finland. Photograph taken on location for BBC Frozen Planet series, March 2010

Nigel Cattlin / Clubroot (Plasmodiophora brassicae) diseased and distorted Cabbage (Brassica oleracea) root.

Nigel Cattlin / Clubroot (Plasmodiophora brassicae) distorted root of a Cabbage (Brassica oleracea). England, UK.

Doug Perrine / Shimmering heat waves distort the image of diver as he samples erupting pillow lava at ocean entry of Kilauea Volcano, Hawaii Island.