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.

Magnus Lundgren / Juvenile Wunderpus octopus (Wunderpus photogenicus) Balayan Bay, off Anilao, Batangas, Philippines, Pacific Ocean.

Brandon Cole / Piraputanga (Brycon hilarii) fish swimming in clear river with trees visible overhead. Brazil, South America.

Shane Gross / Great hammerhead shark (Sphyrna mokarran) swimming over sandy seabed, Bimini, Bahamas.

Alex Mustard / Light patterns on the seabed and fluffy cumulus clouds in the sky in a split level image. North Sound, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

SCOTLAND: The Big Picture / European badger (Meles meles) foraging in front of house at night. Glenfeshie, Cairngorms National Park, Scotland, UK.

Ashley Cooper / Boreal forest trees clear felled to make way for a new tar sands mine north of Fort McMurray, Alberta, Canada. August 2012

Ashley Cooper / Pumping out floodwater from the Civic Centre in Carlisle, Cumbria on Tuesday 8th December 2015, after torrential rain from storm Desmond. England, UK, December 2015.

Alex Mustard / RF - Pod of Atlantic spotted dolphins (Stenella frontalis) swimming over a shallow, sandy seabed. North Bihmini, Bahamas. (This image may be licensed either as rights managed or royalty free.)

Michel Roggo / Water hyacinth (Eichhornia sp.) in a clear stream of the Pantanal, Brazil. Photographed for The Freshwater Project. Finalist in the Wildlife Photographer of the Year Awards (WPOY) Competition 2017.

Nick Garbutt / Emerald Glass Frog (Centrolenella proseblepan) on leaf. Mid-altitude rainforest, Bosque de Paz, Pacific slope, Costa Rica, Central America.

Anup Shah / Lion (Panthera leo) male approaching, Maasai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Klein & Hubert / Gentoo penguin (Pygoscelis papua) with chick on nest, Falkland Islands

Luis Quinta / Moon jellyfish (Aurelia aurita) near the surface, Santa Maria Island, Azores, September.

Edwin Giesbers / Reticulated glass frog (Hyalinobatrachium valerioi) captive, occurs in Colombia, Costa Rica, Ecuador, and Panama

Ben Hall / Marine Iguana (Amblyrhynchus cristatus) on rock with lava lizard sitting on its head, Galapagos Islands, May.

Klein & Hubert / Laughing gull (Leucophaeus atricilla) in flight over Caribbean sea with fish below surface, Bahamas.

Juergen Freund / Mud crab (Scylla serrata) in shallow sandy water. Split level with island and thatched house on stilts. Moromahu Island, Wakatobi, South Sulawesi, Indonesia. Second Place in the Portfolio Award of the...

Sven Zacek / Female Ural owl (Strix uralensis) flying over a clear-cut area, Southern Estonia, May.

Sharon Heald / African elephant (Loxodonta africana) herd silhouetted at sunset, Chobe National Park, Botswana.

Sharon Heald / African buffalo (Syncerus caffer) low angle portrait, Chobe National Park, Botswana.

Eric Baccega / Salt caravans made up of hundreds of Dromedary camels (Camelus dromedarius) and their pullers transporting salt slabs cut from Lake Assale to the Mekele Market, Danakil depression, Afar region, Ethiop...

Sven Zacek / White-tailed sea eagle (Haliaeetus albicilla) in flight, against a clear blue sky, Norway, July.

Sven Zacek / White-tailed sea eagle (Haliaeetus albicilla) flying, against a clear blue sky, Norway, July.

Bruno D'Amicis / Fennec fox (Vulpes zerda) displayed in the market (souk), of a Tunisian town. This species is adapted to silence and solitude of the desert, this individual that had been caught as an adult showed cle...

Franco Banfi / Freshwater jellyfish (Craspedacusta sowerbii) Lake Lugano, Ticino, Switzerland. August. Invasive species.

Bruno D'Amicis / Fennec fox (Vulpes zerda) displayed in the market (souk), of a Tunisian town. This species is adapted to silence and solitude of the desert, this individual that had been caught as an adult showed cle...

Will Burrard-Lucas / Three Ethiopian wolf (Canis simensis) pups waiting for their parents to return, Ethiopia.

Espen Bergersen / Gyrfalcon (Falco rusticolus) and Raven (Corvus corax) in flight, Hornoya bird cliff, Finnmark, Norway. March

Loic Poidevin / Aquatic warbler (Acrocephalus schoenobaenus) Breton Marsh, Vendee, France, May.

Jack Dykinga / Low angle view of Saguaro cactus (Carnegiea gigantea) with twisted lowered arms drooping to the ground, a result of frost damage. Honey Bee Canyon, Oro Valley, Arizona, USA. February.

Tui De Roy / Adelie penguin (Pygoscelis adeliae) courtship behaviour. Prydz Bay, near Davis Station, Vestfold Hills, Ingrid Christensen Coast, East Antarctica, November.

Tui De Roy / Emperor penguin (Aptenodytes forsteri) chicks, Amanda Bay, Prydz Bay, Ingrid Christensen Coast, East Antarctica, November.

Alex Hyde / Spider (Tegenaria sp.) in dew-covered web in limestone cave, Plitvice Lakes National Park, Croatia. January.

Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi) in distance silhouetted at sunrise with clouds, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi) herd at sunrise, Masai-Mara Game Reserve, Kenya. November.

Denis-Huot / Crowned crane (Balearica regulorum gibbericeps) pair at sunrise, Masai-Mara Game Reserve, Kenya. June.

Denis-Huot / African elephant (Loxodonta africana) herd at sunset, Masai-Mara Game Reserve, Kenya. January.

Denis-Huot / Masai giraffes (Giraffa camelopardalis tippelskirchi), at sunrise, Masai-Mara Game Reserve, Kenya. March.

Nick Garbutt / Scarlet Ibis (Eudocimus ruber) flying into roost sight at dusk, Hato La Aurora Reserve, Los Llanos, Colombia, South America.

Markus Varesvuo / White-tailed Eagle (Haliaeetus albicilla) landing on snowy rock, Norway, November

Jack Dykinga / Snow geese (Anser caerulescens) flying toward their gathering pond, with moon in the background, Boque del Apache National Wildlife Refuge, New Mexico. December.

Floris van Breugel / Flawless crystalline ice, produced through millennia of glacial pressure, floating on Lago Grey, Torres del Paine National Park, Chile, June 2014.