Wide shot of two hippopotamuses in the water while two African elephant bulls walking through the river in the background, Khwai Botswana

hippopotamidae waterhole loxodonta africana botswana hippopotamus elephant wildlife largest hippo africa ivory safari grazer tusk territorial animal khwai herbivore cetaceans amphibius species mammal swimming wide shot african large swim amphibious nature river wild bulls two horse water big walking beautiful behavior semiaquatic day background natural hd powerful 50 fps aggressive trees tree