Danny Green / Mountain hare (Lepus timidus) in snow, Scotland, March

Aflo / Stray cat, with black and white face markings, sitting on bench, Aichi, Japan.

Will Burrard-Lucas / Bat-eared fox (Otocyon megalotis) in the scrub at night. Serengeti National Park, Tanzania. November

Anup Shah / Mountain gorilla (Gorilla gorilla beringei) silverback male known as 'Mahindule' portrait, member of 'Humba' group. Virunga National Park, Democratic Republic of Congo, March.

Andres M. Dominguez / Scops owl (Otus scops) roosting in the day, Sierra de Grazalema Natural Park, Southern Spain, June.

Constantinos Petrinos / Domestic cat sitting on disused motorbikes, surrounded by flowers , Greece. April 2009.

George Sanker / Great grey owl (Strix nebulosa) in snow, Wyoming, USA. June.

Richard Du Toit / Burchell's zebra (Equus quagga burchellii) Itala Game Reserve, KwaZulu-Natal, South Africa.

Georgette Douwma / Queen angelfish (Holocanthus ciliaris) with mouth open, Bonaire, Netherlands Antilles, Caribbean, Atlantic Ocean.

Dong Lei / Woolly hare (Lepus oiostolus) hunched up low to the ground, camouflaged against leaf litter, Kawakarpo Mountain, Meri Snow Mountain National Park, Yunnan Province, China. April.

Dong Lei / Woolly hare (Lepus oiostolus) hunched up low to the ground, camouflaged against leaf litter, Kawakarpo Mountain, Meri Snow Mountain National Park, Yunnan Province, China. April.

Aflo / Stray cat, with black and white face markings, sitting on bench, Aichi, Japan.

Mark Taylor / Birman cross cat with blue eyes, face portrait.

Yukihiro Fukuda / Feral domestic rabbit (Oryctolagus cuniculus) resting, Okunojima Island, also known as Rabbit Island, Hiroshima, Japan.

Yukihiro Fukuda / Feral domestic rabbit (Oryctolagus cuniculus) baby poking head out of burrow. Okunojima Island, also known as Rabbit Island, Hiroshima, Japan.

Yukihiro Fukuda / Feral domestic rabbit (Oryctolagus cuniculus) babies resting near burrow, Okunojima Island, also known as Rabbit Island, Hiroshima, Japan.

Gavin Hellier / Luzor Hotel and Casinos on 'The Strip', Las Vegas, Nevada, USA

Gavin Hellier / Hotels and Casinos on 'The Strip' at night , Las Vegas, Nevada, USA

Gavin Hellier / Mandalay Bay Hotel and Casinos on 'The Strip', Las Vegas, Nevada, USA