Roland Seitre / Black-throated honeyguide (Indicator indicator) Fathala Reserve, Senegal.

Roland Seitre / Black-throated honeyguide (Indicator indicator) Fathala Reserve, Senegal.

Roland Seitre / Black-throated honeyguide (Indicator indicator) Fathala Reserve, Senegal.

Roland Seitre / Black-throated honeyguide (Indicator indicator) feeding on honey comb, Makasutu forest, Banjul, Gambia.

Roland Seitre / Black-throated honeyguide (Indicator indicator) feeding on honey comb, Makasutu forest, Banjul, Gambia.

Roland Seitre / Black-throated honeyguide (Indicator indicator) feeding on honey comb, Makasutu forest, Banjul, Gambia.

D. Parer & E. Parer-Cook / Common Wombat (Vombatus ursinus) with sarcoptic skin mange, which will eventually kill it, southeastern Australia

Laurent Geslin / Mangy Black backed jackal {Canis mesomelas} and fur seal, Skeleton coast, Namibia

Laurent Geslin / Urban Red fox suffering from acute mange {Vulpes vulpes} Rehabilitation centre, London, UK

Laurent Geslin / Urban Red fox suffering from acute mange {Vulpes vulpes} London, UK

Roland Seitre / Hoffmann's Two-toed Sloth (Choloepus hoffmanni) veterinarians treating orphan with mange, Aviarios Sloth Sanctuary, Costa Rica

Suzi Eszterhas / Cheetah {Acinonyx jubatus} adult female afflicted with skin mange, Maasai Mara Reserve, Kenya