What is HIPPOPOTAMUS
Historically, hippos have been found throughout all of sub-Saharan Africa. The hippopotamus is typically a slate brown color to muddy brown, with purplish hues often visible. A massive animal, it measures 1500mm in height at the shoulder and has a length of 4310-5160 mm, of which about 560mm is tail. The eyes and nostrils protrude, allowing the animal to see and breathe while otherwise submerged in the water.

Hippopotamus is a valued food source for many of the native people of Africa. The meat is highly prized, as is the large quantity of fat obtained from the kill of a single animal. The hippos teeth are characterized by a thick outer coating of enamel and the fact that they are denser and of finer grain than elephant ivory. Hippos teeth yield superior ivory, and the hide is also considered valuable. Hippopotamus frequently raid agricultural crops. They can inflict a great deal of damage, and inhibit local economies. They are also highly aggressive creatures and have little fear of humans. They are considered among the most dangerous African animals.
(Information from The Animal Diversity Web

http://animaldiversity.ummz.umich.edu/accounts/hippopotamus/h._amphibius$narrative.html)