And I have a bronze cast of a hyena track. And I have a recording of hyenas hooping in addition to the laugh everybody hears. They also who woo, whoop, woo, whoop! Which is great, one of the greatest African animal sounds. And hyenas have the most powerful jaws of any land mammal, not more than a shark, but any land mammal. Strong enough to even crack the bones of the Cape buffalo, thus to eat a lot of calcium. And their dung is white. And in Africa, some of the remote schools will use hyena dung as chalk.