Hippopotamus (Hippopotamus amphibius) sparring, Chobe National Park, Botswana  ,  Adult, Botswana, Chobe National Park, Color Image, Competition, Day, Fighting, Head and Shoulders, Hippopotamus, Hippopotamus amphibius, Horizontal, Nobody, Open Mouth, Outdoors, Photography, Side View, Splashing, Threatened Species, Two Animals, Vulnerable Species, Wildlife,Hippopotamus,Botswana  ,  Winfried Wisniewski