Hippopotamus
Description
The hippopotamus is a large, mostly plant-eating mammal in sub-Saharan Africa. The hippopotamus is semi-aquatic, inhabiting rivers and lakes where territorial bulls preside over a stretch of river and groups of 5 to 30 females and young. During the day they remain cool by staying in the water or mud. They leave the water and travel inland, to graze on short grass, their main source of food.
References
Hippopotamus - For More Details