Alex Mustard,Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...
Dave Bevan / Harvest mouse (Micromys minutus) climbing on corn stalks, UK, July. Captive.
Sylvain Cordier / Monarch butterfly (Danaus plexippus), wintering from November to March in Oyamel pine forests (Abies religiosa) Monarch Butterfly Biosphere Reserve, Mexico.
Michael Hutchinson / Money spider (Tenuiphantes sp) tiptoeing behaviour on daisy. Spiders can stand on tiptoes and produced silk to 'balloon' and travel with the airflow. In this image the silk dragline and feinte...
Ross Hoddinott / Harvest mice (Micromys minutus) on grass stems, Devon, UK. July 2016. Captive.
Fred Olivier / Emperor penguin (Aptenodytes forsteri) chicks calling, with another small chick arriving and falling over, Adelie Land, Antarctica, January.
Nick Hawkins / Red-eyed treefrog (Agalychnis calidryas) Costa Rica, April 2015.
Neil Aldridge / Spotted hyaena (Crocuta crocuta) reassuring her tiny pup at the entrance to their den, Northern Tuli Game Reserve, Botswana.
Alex Hyde / Jumping spider (Salticidae) hunting among vegetation, San Jose, Costa Rica.
Pete Oxford / Whale Shark (Rhincodon typus) close up of spotted skin, with Golden trevally (Gnathanodon speciosus) Cenderawasih Bay, West Papua, Indonesia.
Floris van Breugel / Monarch butterflies (Danaus plexippus) over winter on Eucalyptus and Monterey Cypress trees near Pismo Beach, San Luis, California, USA December.. When temperatures warm up enough, they will embark on...
Michel Poinsignon / Eurasian pygmy Owl (Glaucidium passerinum) perched on conifer branch, Vosges Mountains, France, June.
Andres M. Dominguez / Great green bush-cricket (Tettigonia viridissima) and Common poppy (Papaver rhoeas) Sierra de Grazalema Natural Park, southern Spain, April.
Jordi Chias / Bryde's whale (Balaenoptera edeni) and Common dolphins (Delphinus delphis) chasing small fish offshore. Santa Maria Island, Azores, Atlantic Ocean. Third Place in the Underwater Category of the Por El...
Solvin Zankl / Springtail (Dicyrtomina ornata) on oak tree leaf. Niedersechsische Elbtalaue Biosphere Reserve, Elbe Valley, Lower Saxony, Germany, December.
Jurgen Freund / Man moving Grouper fish between fish pens, Tampakan, Kudat, Sabah, Borneo. June 2009. Second Place in the Portfolio Award of the Terre Sauvage Nature Images Awards Competition 2015.
Jurgen Freund / Paralytic tick (Ixodes holocyclus) with engorged body on human hand, this species affects many species, Spectacled flying fox (Pteropus conspicillatus) among them and infects them with a toxin that ca...
Alex Mustard / Nudibranch (Nembrotha cristata) climbing on a Tunicate (Polycarpa aurata) at night. This species of seaslug feeds on seasquirts. A tiny cyclopoid copepod swimming past. Yillet Yecil, Yillet Islands, M...
Steve Downer / Grove snail / brown lipped snail (Cepaea nemoralis) with juvenile riding on its back, Birmingham UK June.
Suzi Eszterhas / Indian rhinoceros (Rhinoceros unicornis) mother and calf (age 1-2 weeks) Kaziranga National Park, India.
Sven Zacek / Ural owl (Strix uralensis) perching on an Apsen tree during the blue hour of dawn, Tartumaa, Estonia, April.
Mark Hamblin / Mountain hare (Lepus timidus) in white winter coat stretching - in snowy habitat, Scotland. Highly Commended in the Mammals category of the GDT European Photographer of the Year Competition 2015.
Espen Bergersen / Svalbard reindeer (Rangifer tarandus platyrhynchus) in distance at sunset, Svalbard, Norway. April.
Bruno D'Amicis / Fennec fox (Vulpes zerda) wild caught adult, kept in sheep pen in village, Kebili Governorate. Tunisia, April. Winner of the Fritz Polking Portfolio Award of the GDT Competition 2015.
Jordi Chias / Atolla jellyfish (Atolla wyvillei) with Gentoo penguin (Pygoscelis papua) in the background near the surface. Antarctic Peninsula. Finalist in the Underwater category of the Wildlife Photographer of t...
Bruno D'Amicis / Tenebrionid beetle (Tenebrionidae) crossing Fennec fox (Vulpes zerda) tracks on sand. Grand Erg Oriental, Kebili Governorate. Tunisia.
Bruno D'Amicis / Fennec fox (Vulpes zerda) pups playing outside of den, Grand Erg Oriental, Kebili Governorate. Tunisia.
Bruno D'Amicis / Fennec fox (Vulpes zerda) Grand Erg Oriental, Kebili Governorate. Tunisia.
Yukihiro Fukuda / Japanese macaque (Macaca fuscata fuscata) mother with rare white furred baby, Jigokudani Valley, Nagano Prefecture, Japan. June.
Solvin Zankl / Sargassum fish (Histrio histrio) in Broad-toothed gulfweed (Sargassum fluitans) Sargassum Community. Sargasso Sea, Bermuda
Solvin Zankl / Eel (Anguilla leptocephali) larva, Sargasso Sea, Bermuda.