A vampire bat lives on a razor-thin margin. It survives entirely on blood, a diet so demanding that an individual can starve ...

Humans are often happy to share food with their friends, but what about animals? Contrary to their reputation, vampire bats are surprisingly social and generous, and a well-fed bat will even ...

Vampire bats might have developed a creepy reputation with all the eating blood and flapping about at night, but their ability to survive off an entirely blood-based diet is part of what makes them so ...

Vampire bats have become such specialized bloodsuckers that they metabolize their food more like some blood-feeding flies than like other known mammals, a new experiment shows. The common vampire bat ...

You can probably picture a vampire: Pale, sharply fanged undead sucker of blood, deterred only by sunlight, religious paraphernalia and garlic. They're gnarly ...