As intimidating as they might sound, vampire bats aren’t usually in the business of bothering humans for their blood. In fact, the hairy-legged vampire bat species was thought to feed almost exclusively on birds.
But researchers have discovered that hairy-legged vampire bats in north-east Brazil have managed to kick things up a notch - they’ve been caught feeding on humans by night, and that’s something no one even thought was possible.
"We were quite surprised," Enrico Bernard from the Federal University of Pernambuco in Brazil told New Scientist.
"This species isn’t adapted to feed on the blood of mammals."