Nicolas Rakotopare / Lumholtz tree-kangaroo (Dendrolagus lumholtzi) holding onto a branch in a tree and feeding on a leaf, Queensland, Australia. January.

Nicolas Rakotopare / Sri Lankan elephant (Elephas maximus maximus) juvenile bathing and playing in water with herd, Yala National Park, Sri Lanka. March.

Konrad Wothe / African bush elephant (Loxodonta africana) mother and calf drinking and playing at small waterhole. Both animals nudge each other, so they can reach the water. Samburu Game Reserve, Kenya.

Konrad Wothe / African bush elephant (Loxodonta africana) mother and calf drinking and playing at small waterhole. The juvenile goes head-to-head with the adult, nudging and pushing against the its trunk. Then the a...

Jamie Unwin / Close up of a female African lion's (Panthera leo) paws as she walks away from the camera along a concrete wall, Kenya.

Jamie Unwin / African lion (Panthera leo) female enters frame and walks across a concrete structure. The animal leaves the frame. Kenya.

Neil Challis / Tracking shot of Asian elephant (Elephas maximus) crossing the road in the early morning. The elephant disappears into the forest, leaving the frame. Western Thailand.

Eric Baccega / Giant panda (Ailuropoda melanoleuca) female, Huan Huan, eating bamboo, Zoo Parc de Beauval, France. Captive.

Eric Baccega / Giant panda (Ailuropoda melanoleuca) female, Huan Huan, breaking a bamboo stem and then eating it, Zoo Parc de Beauval, France. Captive.

Eric Baccega / Giant panda (Ailuropoda melanoleuca) female, Huan Huan, eating bamboo, Zoo Parc de Beauval, France. Captive.

Nicolas Rakotopare / Eastern grey kangaroo (Macropus giganteus) mother and joey feeding in short grass. While the female is feeding, the joey is hoping around the frame. Queensland, Australia. January.

Nicolas Rakotopare / Black flying fox (Pteropus alecto) resting, before it takes off from branch and leaves frame, Queensland, Australia. April.