White rhino and impala antelope at a small drinking hole in the kalahari bushveld

white rhino rhino impala antelope drinking waterhole kalahari bushveld bush rhinoceros white dust crash dry arid africa landscape savanna white rhinocerros squarelipped gazelle gazelles buck deer wildlife horn endangered poaching ceratotherium animal game reserve mammal wild african reserve nature outdoors safari species large wilderness conservation poached dangerous horned herbivore fauna grass game