Today an estimated 150,000 wild hippos live in sub-Saharan Africa. People believed for a long time that hippo's pink sweat was blood. This substance not only cools a hot hippo down, but may also fight skin infections and disease. Hippos are very territorial, and will fight other creatures and each other to hold their ground. Hippos like their space, and are powerful, quick fighters in the water.
Hippos spend two-thirds of the day in the water before going off to find grass.
While grazing, Hippos stick to themselves, but usually return to the same pool before sunrise. If there's no grass near the water, the Hippos will travel several miles each night to food.