Debapratim Saha/ BIA / Hair-crested Drongo (Dicrurus hottentottus), West Bengal, India

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) biologist, Rebecca Cliffe, taking hair samples, Isla Escudo de Veraguas, Panama

Wim van den Heever / Vervet Monkey (Chlorocebus pygerythrus) baby jumping between branches, photographed mid air. Okavango Delta Botswana.

Tony Heald / Hanuman langur (Semnopithecus entellus) eating coconut husk, Bandhavgarh National Park, India. March.

Richard Kirby / Svalbard reindeer (Rangifer tarandus platyrhynchus) mother and calves, Svalbard, Norway, February.

Cyril Ruoso / Sumatran orangutan (Pongo abelii) female holding hands with baby whilst hanging from liana. Gunung Leuser National Park, Sumatra, Indonesia.

Eric Baccega / Young woman from the Bodi tribe displaying elaborate scarification on the skin of her back, Omo Valley, Ethiopia, March 2015.

Sven Zacek / American mink (Mustela vison) on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / Roe deer (Capreolus capreolus) buck with velvet antlers in snowy field at sunset, Tartumaa, Estonia, March.

Yukihiro Fukuda / Japanese macaque (Macaca fuscata fuscata) rare white furred baby jumping, Jigokudani Valley, Nagano Prefecture, Japan. June.

Staffan Widstrand / Arctic fox (Vulpes lagopus) in winter coat, sitting, Spitsbergen, Svalbard, Norway, September

Danny Green / Coastal brown bear (Ursus arctos) standing on hind legs, Lake Clarke National Park, Alaska, September.