hippos fighting in africa

africa african aggressive animal animals antagonistic antagonize area attack attacking battle behaviour big bite biting conservation danger dangerous defence defending display displaying dominance domination east ecotourism environment fight fighting game herbivore herbivorous hippo hippopotamus huge infested jaws kruger large mammal migration nile plains power protected reserve roar romp safari savannah serengeti south splash splashing submerged swim swimming tanzania teeth territorial territory tooth tourism travel tropical two vicious water wild wildlife world