Mozzarella is a cheese made from buffalo milk, from a proper buffalo, not the North American Bison. What's the difference between a buffalo and a bison? You can't wash your hands in a buffalo.

You can get llama milk cheese in Peru, yak milk cheese in Tibet. A camel dairy in Mauritania even makes a soft cheese from camel milk - it's called 'camelbert'. Turkey has a horse milk cheese.