013819 01 Location Zambia People Actions Activity Animal Animal Behavior Animal Behaviors Animalia Animals Artifact Artiodactyla Behavior Behaviors Binoculars Blind Even toed Ungulate Even toed Ungulates Hiding Hippo Hippopotamidae Hippopotamus Hoofed Mammal Hoofed Mammals Industry Land Mammal Land Mammals Mammal Mammals More Than Two Multiple Multitude Multitudes Nature Number Of Subjects Object Observing Species Subject Tourism Tourist Tourists Travel Traveler Traveller Ungulate Ungulates Vertebrata Vertebrate Vertebrates Visitor Watching Wildlife 20080227 Frans Lanting USA Frans Lanting © Frans Lanting Tourist watching hippos Hipopotamus amphibus Luangwa Valley Zambia