Hippopotamus shortly is known as Hippo, is mostly Herbivorous animal in sub-Sharan Africa. It is also known as river horse. Generally Hippos come under the species Hippopotamus amphibius into two parts one is Family Hippopotamidae and the other is Pygmy hippopotamus. It si the third largest land animal comes after Elephant and White Rhinoceros. It is the heaviest extant Artiodactyl animal. Hippo is a semi-aquatic animal, who is habituated with both river and land for living. It is recognized by its barrel-shaped torso, enormous mouth and teeth and also for its tremendous big size.