Hippopotamus
Hippopotamus (Hippopotamus amphibius) running back to its water hole during early morning in Serengeti National Park, Tanzania. Hippopotamus usually emerge from the water at dusk to graze during the night. The hippopotamus is one of the most aggressive creatures in the world and is often regarded as the most ferocious animal in Africa. It is identified as a vulnerable species by the World Conservation Union (IUCN)
