Hippopotamus

The Hippopotamus, also known as the Common Hippopotamus, River Hippopotamus or simply Hippo, is a large mammal native to sub-Saharan African rivers, lakes and mangrove swamps. "Hippopotamus" comes from the Greek word "River Horse", but hippos are in fact more closely related to whales and dolphins. They are easily recognizable by their barrel-shaped torsos, wide mouths and large canines. The hippopotamus is one of the largest animals in Africa, with males weighing up to 1500kg (3310lb). Despite its fierce appearance, hippos are herbivores, coming out onto land at night to graze; their large teeth are used only for fighting and defense.

Hippos are semi-aquatic in nature and spend most of the day in water or mud to avoid the heat of the African sun. Mating and birthing also occurs underwater, but despite this, adult hippos can't actually swim -calves can swim in short bursts- and tend to stay in shallow waters. Although largely solitary, hippos will gather in loose groups, or pods, when there is enough water. The hippopotamus is stated to be one of the most dangerous animals in Africa.