Bence Mate / Two newly fledged burrowing owl chicks (Athene cunicularia) one being groomed by its mother (far left) Pantanal, Brazil. WINNER: Eric Hosking Award portfolio image 4/6 - Wildlife Photographer of the Y...

Paul Hobson / Gannet, (Morus bassanus) rear view, flying into head wind, tail used as break, Yorkshire coastline, England. UK. May.

Nick Garbutt / Three Ring-tailed Lemurs (Lemur catta) sun basking at dawn. Berenty Private Reserve, southern Madagascar. (digitally stitched image)

Alex Mustard / A domestic pig (Sus scrofa domestica) swimming in the sea. Exuma Cays, Bahamas. Tropical West Atlantic Ocean. This family of pigs live on this beach in the Bahamas and enjoy swimming in the sea.

Kevin Schafer / Two Amazon river dolphins / Botos (Inia geoffrensis) swimming underwater in flooded rainforest, one with beak open, Rio Negro, Amazonia, Brazil, July

Floris van Breugel / Burrowing Owl (Athene cunicularia) standing at entrance to burrow, and watching a Red-tailed Hawk circling above. Salton Sea, California, USA.

LYNN M. STONE / Domestic Lions-Head rabbit, juvenile, yawning, in red basket, Illinois, USA

Ernie Janes / Basset hound, portrait, resting head on back of car, eyes half closed, UK

Edwin Giesbers / House Mouse (Mus musculus) peering through hole in cheese. Captive.

Edwin Giesbers / Four Mallard (Anas platyrhynchos) dabbling for food in icy water. The Netherlands, January.

Nature Production / Raccoon (Procyon lotor) hanging from the branch in snow, Minnesota, USA

Igor Shpilenok / Cliffs in the Virgin Komi Forests UNESCO World Heritage site, the largest virgin forests in Europe. Ural Mountains, Komi Republic, Russia. August 2016

Igor Shpilenok / River through Virgin Komi Forests UNESCO World Heritage site, the largest virgin forests in Europe. Ural Mountains, Komi Republic, Russia. August 2016

Igor Shpilenok / River flowing through Virgin Komi Forests UNESCO World Heritage site, the largest virgin forests in Europe. Ural Mountains, Komi Republic, Russia. August 2016

Igor Shpilenok / Reindeer (Rangifer tarandus) in Virgin Komi Forests UNESCO World Heritage site, the largest virgin forests in Europe. Ural Mountains, Komi Republic, Russia. August

Tim Fitzharris / Towers of the Virgin, Zion National Park, Utah

Tim Fitzharris / The Organ formation and Virgin River, Zion National Park, Utah

Tim Fitzharris / Towers of the Virgin, Zion National Park, Utah

Tim Fitzharris / Angels Landing and Virgin River, Zion National Park, Utah

Tim Fitzharris / Rock formations, Virgin River, Court of the Patriarchs, Zion National Park, Utah

Chien Lee / Virgin rainforest, Gunung Gamei, Nabire, Kobowre Mountains, New Guinea, Indonesia

Guy Edwardes / Panorama of the city and Virgin of Quito on Panecillo Hill from the Basilica, Quito, Ecuador, September 2010.

Wild Wonders of Europe / Widstra / Fir (Abies sp), Beech (Fagus silvatica) and Spruce (Picea abies) old-growth virgin forest in Special Forest Reserve, Velebit Nature Park, Rewilding Europe area, Velebit mountains, Croatia, June 2012