Bruno D'Amicis / Wild Apennine wolf (Canis lupus italicus) in snowy landscape. Central Apennines, Abruzzo, Italy. February. Italian endemic subspecies.

Staffan Widstrand / Wild Wonders of China / Tibetan wolf (Canis lupus) in snow, Keke Xili, Changtang, Tibetan Plateau, Qinghai, China

Claudio Contreras / Caribbean Flamingo (Phoenicopterus ruber) chick age 5 days, walking around nest, breeding colony, Ria Lagartos Biosphere Reserve, Yucatan Peninsula, Mexico, June, Finalist in the Portfolio Category of...

Claudio Contreras / Caribbean Flamingo (Phoenicopterus ruber) chick group walking around the breeding colony, Ria Lagartos Biosphere Reserve, Yucatan Peninsula, Mexico, June, Finalist in the Portfolio Category of the Ter...

Guy Edwardes / Snowy owl (Bubo scandiacus) walking on ground in snow, one foot raised, Ontario, Canada, January.

Ashley Cooper / Passengers on an expedition cruise climbing the caldera on Deception Island, South Shetland Islands, Antarctic Peninsula. February 2014.

Connor Stefanison / Canada lynx (Lynx canadensis) walking through a mountain meadow, Manning Provincial Park, British Columbia, Canada. July.

Dong Lei / Kiang (Equus kiang) walking, Sanjiangyuan National Nature Reserve, Qinghai Hoh Xil UNESCO World Heritage Site, Qinghai-Tibet Plateau, Qinghai Province, China.

Nayan Khanolkar / Leopard (Panthera pardus fusca) walking in alley between houses. Aarey Milk Colony in unofficial buffer zone of Sanjay Gandhi National Park, Mumbai, India. April 2016.

Connor Stefanison / Cinnamon phase black bear (Ursus americanus) boar walking past an infrared triggered camera trap. Williams Lake, British Columbia, Canada July.

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) juvenile male 'Gimli' aged 9 years walking on a track . Gombe National Park, Tanzania.

Bernard Castelein / James's flamingo (Phoenicoparrus jamesi) walking with wings outstreched Laguna Colorada / Reserva Eduardo Avaroa, Altiplano, Bolivia