Two young hippos battling quietly in the Khwai RIver at dawn, on safari in Botswana

hippopotamus amphibius okavango delta moremi game reserve hippopotamus hippo botswana wildlife conservation africa grazer mammal tusk tussle ripples tourism herbivore safari territory 60fps shallow depth of field battle water attack vulnerable pod playing biting khwai mouth bite dangerous river splash scenery strength teeth big flowing 4k huge gums grass young feet fighting bank wide green pink