Hippos (Hippopotamus amphibius), Tanzania, East Africa

africa african aggression aggressions aggressive amphibius animal animals artiodactyla bathe bathes bathing bodies body day daylight daytime during east even even toed exterior exteriors fauna hippo hippopotami hippopotamus hippopotamuses hippos kingdom mammal mammalia mammalian mammalians mammals nature nobody open opened openly outdoor photo photos shot shots sit sits sitting snout snouts tanzania tetrapod threat threatening threats tired toed toed ungulate ungulates vertebrata vertebrate vertebrates water waters wild wildlife world yawn yawning yawns