Hippopotamus, Hippopotamus amphibius, threat-yawning in the Khwai river in the Okavango Delta's Khwai concession. Botswana.

hippopotamus amphibius hippopotamus hippopotamus amphibius river stream adult group threat profile shot overview yawn botswana okavango delta hippopotamus vulnerable iucn vu interior delta unesco's world heritage game reserve november threat yawning nobody khwai river game reserve hippopotamuses hippopotamus amphibius rivers stream adults groups threats threatening threaten threatened profile sights profile sight profile shots profile view profile views side view overviews global sight global sights full length yawns yawning yawnings vulnerable species world heritage site wildlife reserve threat yawnings with nobody hippopotamus hippopotamidae sp even toed ungulate ungulate mammal wild animal animal body of water freshwater wetland area area stage of development individual enumeration behavior shot motion southern africa africa botswana protected areas hippopotamidae artiodactyla mammalia therapsida synapsida vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota threatened endangered species iucn red list of threatened species species environment protection environment management biodiversity management environment convention on international trade in endangered species of wild cites social behaviour moremi game reserve national park)