Hippopotamus in a river resting in Serengeti National Park, Tanzania Africa

deserted water river body of water serengeti hippo wild animal animal nature tanzania africa wildlife even toed ungulate natural preserve reserve african national park mammal nature reserve east africa submerged aquatic wildlife photography serengeti national park wildlife refuge natural environment hippopotamus no one waterfront waters river horse animals in the wild open air fauna nature park protected area np mammalian eastern africa serengetipark habitat no people wildlife naturpark sanctuary np nature conservation area serengeti park natural habitat nobody conservation area natural reserve uninhabited environmental reserve empty rivers hippos wild animals animals even toed ungulates natural preserves reserves national parks mammals nature reserves wildlife refuges natural environments hippopotamuses river horses mammalians water body water area open water nsg natural park