Alex Mustard / Portrait of a spotted sunfish (Lepomis punctatus) in front of reeds in a river. Rainbow River, Florida, United States of America.

Eric Baccega / Common hamster feeding (Cricetus cricetus) Alsace, France, April, captive

Fabrice Cahez / Wild cat (Felis silvestris) backlit, in field, Vosges, France, June

Andy Rouse,Andy Rouse / Ring tailed Lemurs (Lemur catta) silhouetted, Madagascar.

Nick Turner / Gloucester old spot domestic pig (Sus scrofa domestica) head portrait with ring through snout and ears covering eyes, UK.

Nick Turner / Freerange Gloucester old spot domestic pig (Sus scrofa domestica) portrait with ears covering eyes, UK.

Petra Wegner / Cavalier King Charles Spaniel, puppy, black-and-tan, 6 weeks, sitting on grass, wearing collar.

Mike Read / Magellanic oystercatcher (Haematopus leucopodus) Falkland Islands

Willem Kolvoort / Aquatic plants in River Black Drim, Albania, Eastern Europe, May

Andrew Parkinson / Barn owl (Tyto alba) adult in flight in evening light, Norfolk, UK

Anup Shah / Black backed jackal pup (Canis mesomelas) searching through grass, Masai Mara National Reserve, Kenya

Klaus Echle / Roe Deer (Capreolus capreolus) foraging for grass under snow. Black Forest, Germany, December.