Hippos engage in playful water fight at Kruger National Park,closeup

kruger national park south africa hippo common hippopotamus river hippopotamus close up herbivores riverbank national park tussle water fight playfulness mock aggression intimidating teeth power spectacle strength ferocity entertaining fun aquatic wet leathery skin snorts grunts jaws tusks lounging bulging bodies size wildlife nature conservation aquatic mammals animal behavior playful fighting african wildlife mammal water play combat aquatic combat powerful herd aggressive hippopotamus amphibius