Vampire bats are species of bats that utilize blood as their only food source. There are actually three species of vampire bats, all of which are native to the Americas: Desmodus rotundus, or the common vampire bat; Diaemus youngi, or the white-winged vampire bat; and Diphylla ecaudata, or the hairy-legged vampire bat. These bats got their common names from the blood-sucking vampires of legend. Although the bats were discovered during the 16th century, their popular name did not come into common use until the 18th century, when stories about vampires began to proliferate in the Americas.
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