For vampire bats, regurgitating blood into a roostmate's mouth is a sign of ultimate trust. It's a risky strategy for the creatures, who don't know if donating their food will be reciprocated. Vampire ...

Vampire bats’ main fuel source is the blood they drink, scientists have confirmed – after putting the creatures on a treadmill. Most animals, including humans, use carbohydrates as their primary fuel ...

WASHINGTON — Scientists have figured out why vampire bats are the only mammals that can survive on a diet of just blood. They compared the genome of common vampire bats to 26 other bat species and ...

Vampire bats got a bum rap in their association with Halloween and all things spooky and sinister. That reputation has been extended to all bats, which seldom, if ever, morph into immortal ...