Vampire bats are the only mammals that feed entirely on blood. But contrary to the image of a huge beast with blood dripping from its fangs, the common vampire bat weighs less than two ounces.
|Vampire bats are heading for Texas now.||If Texas winters become warmer, they might be here in 50 years.|
|Vampire bats are huge.||They are 3 to 4 inches long with a wingspan of 7 inches, and weigh about as much as two AA batteries.|
|Vampire bats suck blood.||They use their razor-sharp front teeth to pierce the skin of livestock and then lap up the blood.|
|Vampire bats attack humans.||It might happen, but it is extremely rare.|
Dr. Ivan Castro-Arellano is an Assistant Professor of Biology at Texas State University. View his Texas State bio.