Luke Massey / Spotted hyenas (Crocuta crocuta) in urban setting at night, Harar, Ethiopia

Neil Aldridge / Spotted hyaena (Crocuta crocuta) reassuring her tiny pup at the entrance to their den, Northern Tuli Game Reserve, Botswana.

Neil Aldridge / Spotted hyaena (Crocuta crocuta) exploring the skeleton of an elephant, Selinda Spillway, northern Botswana.

Will Burrard-Lucas / Spotted hyena (Crocuta crocuta) at night, taken with remote camera. Liuwa Plain National Park, Zambia. December

Will Burrard-Lucas / Spotted hyena (Crocuta crocuta) low angle shot of group taken with remote camera. Liuwa Plain National Park, Zambia. May

Anup Shah / Spotted Hyena (Crocuta crocuta) group, Masai Mara, 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

Solvin Zankl / Brown hyena (Hyaena brunnea) stalking fur seal (Arctocephalus pusillus) pup, Sperrgebiet National Park, Namibia, December. Sequence 1/8

Anup Shah / Spotted hyena (Crocuta crocuta) walking and smelling the ground. Maasai Mara National Reserve, Kenya.

Anup Shah / White-backed vultures (Gyps africanus) waiting for Spotted hyenas (Crocuta crocuta) to finish feeding on a kill. Maasai Mara National Reserve, Kenya.

Anup Shah / Spotted Hyena (Crocuta crocuta) group feeding on kill, Masai Mara, Kenya