Tony Wu / Humpback whale (Megaptera novaeangliae) lying on its side while executing a series of pectoral fin slaps on ocean surface. Vava'u, Tonga, South Pacific.

Karine Aigner / Bengal tiger (Panthera tigris tigris) head, close up. Ranthambore National Park, Rajasthan, India.

Anup Shah / Cheetah (Acinonyx jubatus) male juvenile aged about 18 months approaching a kill, wide angle view. Maasai Mara National Reserve, Kenya.

Enrique Lopez-Tapia / Man feeding Hyaenas (Crocuta crocuta) at night in Harar City, this has been a tradition for several centuries, and has now become a show for tourists. Ethiopia, November 2014

Enrique Lopez-Tapia / Man feeding Hyaenas (Crocuta crocuta) at night in Harar City, this has been a tradition for several centuries, and has now become a show for tourists. Ethiopia, November 2014

Cyril Ruoso / Bonobo (Pan paniscus) newborn baby sleeping next to mother, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. Non-ex

Theo Webb / Bonobo (Pan paniscus) lying in a day nest, Max Planck research site, LuiKotale, Salonga National Park, Democratic Republic of Congo.

Solvin Zankl / Black backed jackal (Canis mesomelas) attacking Cape fur seal (Arctocephalus pusillus) pup, Sperrgebiet National Park, Namibia, December. Sequence 3/6

Andy Rouse / Bengal tiger (Panthera tigris tigris) 11 month cubs with mother 'T19 Krishna' in background, Ranthambhore National Park, India.

Paul Hobson / Otter (Lutra lutra) female grooming in seaweed, Mull, Scotland, UK, September.

Olga Kamenskaya / Baikal seals (Pusa sibirica) hauled out on rock. Endemic to Lake Baikal. Russia, May.

Jabruson / Dying African forest elephant (Loxodonta africana cyclotis), shot and wounded by poachers, near Lokoue Bai. Odzala-Kokoua National Park, Democratic Republic of Congo.