Stock photography, photos: Hippos - Maasai Mara - Kenya Stock photos of Hippopotamus (Hippopotamus amphibius) in the Mara River. Maasai Mara Game Reserve. Kenya. Photograph: © Robert Burch Click for a larger image and more information Keywords associated with this stock photo: africa, east africa, kenya, safari, hippo, hippopotamus, mammals, mammal, animal, animals, amphibius, big, mouth, Hippopotamus amphibius