hippopotamus (hippopotamus amphibius) enjoying in cool water : (pix sanjiv shukla)

hippopotamus amphibius hippo common river large herbivorous semi-aquatic mammal aquatic ungulate sub-saharan africa family hippopotamidae artiodactyls even-toed ungulates barrel-shaped torso body wide-opening mouth canine tusks teeth columnar legs stocky short rivers lakes mangrove swamps graze grasses solitary territorial dangerous animal aggressive unpredictable threatened habitat loss poaching meat ivory megaherbivore tail nostrils nictitating membranes eyes webbed feet natural sunscreen blood sweat nature