Doug Perrine / Bioluminescence from glowing plankton in sea tide line on beach, with stars above and ship lights on horizon, Vaadhoo Island, Raa Atoll, Maldives, Indian Ocean, October 2010

SCOTLAND: The Big Picture / Close up of a colony of Jewel anemones (Corynactis viridis) Scotland, UK, October.

Ross Hoddinott / Close-up of backlit Porcelain fungus (Oudemansiella mucida) showing gills, Golith Falls, Bodin, Cornwall, UK. September.

Steve Downer / Yellow slug (Limax flavus) back lit embryo moving around in egg case.

Steve Downer / Banded snail (Cepaea nemoralis) on rear of a backlit rose leaf, controlled conditions.

Frederique Olivier / Adelie penguin (Pygoscelis adeliae) regurgitating food for its chick, Antarctica.

Ingo Arndt / Grizzly bear (Ursus arctos horribilis) silhouette, Lake Clark National Park, Alaska

Pal Hermansen / Herd of domesticated Reindeer (Rangifer tarandus) moving around, Norway, September.

Michel Poinsignon / Grey heron (Ardea cinerea) catching fish in lake, Pusztaszer, Hungary, April

Wim van den Heever / Lion (Panthera leo) male with scars photographed with side-lit spot light at night. Greater Kruger National Park, South Africa, April.

Pedro Narra / Scientists observing lava and ash plume erupting from Fogo Volcano, Fogo Island, Cape Verde, 29th November 2014.

Erlend Haarberg / Woman pulling a sledge up a slope, Rapadalen, Sarek National Park, Laponia, Sweden, March 2015.