Pascal Pittorino / Przewalski's horse (Equus ferus przewalski) head portrait, captive, Lozere, France, December.

Jussi Murtosaari / European robin (Erithacus rubecula) adult with autumn leaves in background, Punkaharju, Etela-Savo / Southern Savonia, Ita-Suomi / Eastern Finland, Finland. September

Dong Lei / Chestnut-headed Tesia (Tesia castaneocoronata) perched, Sichuan Province, China.

Erlend Haarberg / Mountain hare (Lepus timidus) head portrait. Vauldalen, Sor-Trondelag, Norway, April.

Angelo Gandolfi / Pampas deer (Ozotoceros bezoarticus) buck in velvet standing by flowering tree, Pantanal, Brazil

Fiona Rogers / Sumatran orangutan (Pongo abelii) mature male 'Halik' aged 26 years lying down - portrait. Gunung Leuser National Park, Sumatra, Indonesia. Apr 2012. Rehabilitated and released (or descended from thos...

Enrique Lopez-Tapia / Close up portait of three children, Askole village (3,000m), Braldu Valley, Karakoram Range, Pakistan, July 2007.

Benjamin Barthelemy,Benjamin Barthelemy / Grey seal (Halichoerus grypus) hauled out on a beach at sunrise, Donna Nook Lincolnshire Wildlife Trust Reserve, Lincolnshire, England, UK, January.

Dave Watts / Pyrenean chamois {Rupicapra rupicapra pyrenaica} Pyrenees, France

Ashley Cooper / Syrian migrants, refugees fleeing the war, Lesvos Island, Greece. September 2015.

Laurie Campbell / Reindeer (Rangifer tarandus) close up of eye, Cairngorms Reindeer Herd, Inverness-shire, Scotland, UK, December. Introduced species.

Richard Robinson / A Blue shark (Prionace glauca) just below the surface, with nictitating membrane partially shut to protect its eye, Hauraki Gulf, Auckland, New Zealand, June.