Michael D. Kern / Kaleidoscope pattern formed from picture of Greenbottle blue tarantula (Chromatopelma cyaneopubescens) - see original image number 01482830 EMBARGOED FOR NAT GEO UNTIL the end of 2015

Alex Mustard / Grooved brain coral (Diploria labyrinthiformis) at night with polyps extended to feed, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Nick Garbutt / Aggregation / bloom / swarm of Moon Jellyfish (Aurelia aurita) in the clear waters of Loch Na Keal, off the Isle of Mull, north west Scotland, UK, June, Photographed through the surface.

Andy Rouse / Polar Bear (Ursus maritimus) portrait in sea-ice landscape. Wide angle / fish-eye shot. Svalbard, Norway, September.

Klaus Echle / Red Fox (Vulpes vulpes) walking along a fallen trunk, silhouetted in misty forest. Black Forest, Germany, November.

Ann & Steve Toon / Meerkats (Suricata suricatta) on the move, Kgalagadi Transfrontier Park, Northern Cape, South Africa, January. Second place in the Mammals Category of the GDT European Nature Photographer of the Year...

Theo Bosboom / Rocks and sea stacks in the surf at Playa del Silencio in Asturias on the Northwest coast of Spain. May 2015

Tony Heald / African wild dog (Lycaon pictus) portrait. Chobe National Park Botswana. Digitally enhanced sepia image.

Theo Bosboom / Aerial of patterns of receding waves, Playa del Silencio, Asturias, Spain. April 2018

Theo Bosboom / Crashing waves at large basalt wall, Arnarstapi, Snaefellsnes, Iceland. May 2013

Theo Bosboom / Common limpets (Patella vulgata) hit by a big wave from the Atlantic ocean at the coast of Crohy head, Donegal, Republic of Ireland. November 2017

Theo Bosboom / Sea stacks consisting of flysch rock battered by the incoming tide, playa de Gueirua, Asturias, Northwest Spain. October 2015