In Africa, hippos kill many people each year. Hippos can run up to 20 mph for a short distance and are great swimmers. They crush their victims with their massive jaws and large tusks which can grow up to 20 inches long. Very few predators will attack an adult hippo. Lions, hyenas and crocodiles prey on young hippos and sick or old adult hippos.
Humans are the main predator of hippos, which are hunted for their hides, meat and ivory tusks.