Mozzarella is a kind of fresh cheese. Originally, it was Italian but now it can be found all over the world. Its made of the milk of cows or water buffalos. A cheese produced in a similar way, but with sheep's milk is common in Sardinia, Abruzzo and Lazio. It is sometimes called mozzapecora. Mozzarella of goats' milk can also be found. Its development is more recent, though. The main reason it is produced is that goats' milk is easier to digest than that of cows or buffalos.