Yashpal Rathore / Indian leopard (Panthera pardus fusca) using the underpass of National Highway NH-44, the longest national highway in India, seen here passing through Pench Tiger Reserve, Madhya Pradesh, India.Contac...

Yashpal Rathore / Bengal tigers (Panthera tigris), cub folllowing mother using the underpass of National Highway NH-44, the longest national highway in India, seen here passing through Pench Tiger Reserve, Madhya Prade...

Roland Seitre / Iberian lynx road sign along dirt track with car in background, Donana National Park, Andalucia, Spain. June. Endangered.

Yashpal Rathore / Indian leopard (Panthera pardus fusca) using the underpass of National Highway NH-44, the longest national highway in India, seen here passing through Pench Tiger Reserve, Madhya Pradesh, India. Conta...

Yashpal Rathore / Bengal tiger (Panthera tigris) using the underpass of National Highway NH-44, the longest national highway in India, seen here passing through Pench Tiger Reserve, Madhya Pradesh, India. Contact us to...

Yashpal Rathore / Bengal tiger (Panthera tigris) using the underpass of National Highway NH-44, the longest national highway in India, seen here passing through Pench Tiger Reserve, Madhya Pradesh, India. Contact us to...

Yashpal Rathore / Bengal tiger (Panthera tigris) using the underpass of National Highway NH-44, the longest national highway in India, seen here passing through Pench Tiger Reserve, Madhya Pradesh, India. Contact us to...

Richard Sidey / Black-browed albatrosses (Thalassarche melanophris) pair, courtship display, Falkland Islands. January.

Neil Aldridge / Hawksbill turtle (Eretmochelys imbricata) swimming over a damaged reef, South Ari Atoll, Maldives. Critically endangered.

Neil Aldridge / African elephant (Loxodonta africana) head portrait, Okavango Delta, Botswana. Endangered.

Jen Guyton / African golden monkey (Cercopithecus mitis kandti) feeding on a potato that it has just stolen from a small farm. A park ranger (at right) stands watching, having just chased away several monkeys from...

Maxime Aliaga / Giant otter (Pteronura brasiliensis) running through shallow water along riverbank, Pantanal, Mato Grosso, Brazil. Endangered.