Hippos (Hippopotamus amphibius) yawning, the animal opens its mouth upward at the sky. Black and white image. Hwange National Park, Zimbabwe, Africa

africa animals animal artiodactyla black and white shot black and white black white black and white photograph black and white photo black and white black deserted east africa eastern africa empty even toed ungulates even toed ungulate hippopatamus amphibius hippopotamidae hippopotamus amphibius hippopotamuses hippopotamus hippos hippo hwange national park mammalian mammalia mammals mammal mouths mouth np national parks national park natural preserves natural preserve nature conservation area nature park nature reserves nature reserve nature naturpark nobody no one no people np opening open protected area reserves reserve river horse sanctury skies sky sw photo travel photography uninhabited white yawning yawn zimbabwe