The hippopotamus, or hippo, is a large, mostly herbivorous mammal in sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae. The name comes from the ancient Greek for "river horse"
This hippopotamus looks like she is wearing pink boots as she grazes on grass by a riverbank. It is thought the hippo has a skin condition characterised by reduced pigmentation. Photographer Peter Gordon snapped the rare sight in Tanzania.