Their thumb is much shorter than that of the common vampire bat. Batsy Claro is the daughter of the White Vampire Bat. It was 30% larger than the extant vampire bat "Desmodus rotundus". He then, inexplicably, begins to transform into a vampire bat. Severin goes outside to fetch another lock, but is killed by a vampire bat. On top of the head is a vampire bat. The common vampire bat practices hematophagy, mainly feeding on the blood of livestock. The late Dr. Campbell was experimenting with vampire bat blood just before his death. To establish his importance, the Inca Atahualpa commissioned a "llawt'u" woven from vampire bat hair. The vampire bat lineage diverged from its family 26 million years ago. It is the largest-known vampire bat to have ever lived. Afterward, they both starred in "The Mystery of the Wax Museum" and "The Vampire Bat". This legend may have originated from the vampire bat, an animal endemic to the region. The common vampire bat may also have an infrared sensor on its nose. The Common vampire bat has specialized infrared sensors in its nose-leaf.