Edwin Giesbers / Saltwater crocodile (Crocodylus porosus) close up portrait, Sarawak, Borneo, Malaysia

Yashpal Rathore / Bengal tiger (Panthera tigris tigris) walking at night, with monsoon clouds and lightning. Kanha National Park, Central India. Dominant male (T29)

Wim van den Heever / African lion (Panthera leo) growling at potential danger in the water (Panthera leo) Okavango Delta, Botswana.

MYN / JP Lawrence / Strawberry poison frog (Oophaga pumilio) Escudo de Veraguas, Panama. Meetyourneighbours.net project

Staffan Widstrand / Hippopotamus (Hippopotamus amphibius) bull emerging from water to charge, iSimangaliso Wetland Park, KwaZulu Natal National Park. South Africa. Specially commended in the Animal Portraits category of...

Staffan Widstrand / Eurasian griffon vulture (Gyps fulvus) blurred motion photograph at wildlife watching and vulture feeding site, Pre-Pyrenees, Catalonia, Spain, March.

Sharon Heald / Hippopotamus (Hippopotamus amphibius) charging, Chobe National Park, Botswana, July.

Tony Heald / Hippopotamus (Hippopotamus amphibius) charging, Chobe National Park, Botswana, July.

Danny Green / Mountain Hare (Lepus timidus) resting with ears back, Scotland, March. Highly Commended in the Animal Portrait Category of the BWPA Competition 2015.

Ole Jorgen Liodden / Hippopotamus (Hippopotamus amphibius) rearing head out of water, creating spray, Lake Naivasha, Kenya.

Ole Jorgen Liodden / Waved albatross (Phoebastria irrorata) pair in courtship display, Espanola, Galapagos Islands. Critically endangered species.

Andy Rouse / Mountain gorilla (Gorilla beringei) silverback yawning with mouth wide open. Rwanda.