Hippo Hippopotamus amphibius in waterhole yawning and showing its teeth, Sabi Sands, South Africa

animal behaviour flying one animal africa southern africa south africa full length horizontal colour image photography side view back lit silhouette animal bird tropical bird tree wing weather sunset non urban scene outdoors twilight evening animal themes nature nature reserve wildlife reserve wildlife animals in the wild safari animals animal conservation ground hornbill bucorvus leadbeateri londolozi wildlife reserve animal conservation