Large adult hippopotamus with Oxpecker birds eats fresh green grass

hippo hippopotamus large bad skin eat fresh green grass bushveld oxpecker bird artiodactyla dangerous hippopotamus amphibius kubu pachyderm pachydermata pfuvu poaching target seekooi tusk giant jumbo heavy grazer pod raft silent endangered intelligent highly social africa mammal animal safari wildlife wild fauna nature herbivore massive wilderness aquatic conservation kruger aggression mouth amphibious