In fact, there are only three kinds of bat in the world that feed on blood, and all of them are found in Latin America. Two of them are already practically extinct, and very little is known about them.
其實，全世界只有三種蝙蝠以血為食，它們全數分佈在中、南美洲，其中兩種已近乎絕跡，人們對它們的行為一無所知。