A group of hippopotamus in a river. Serengeti National Park, Tanzania, Africa

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