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 ...

Scientists put the bloodsucking mammals on a treadmill to understand how they get the energy to chase down their next meal. Researchers tracked how vampire bats processed their blood meals as they ...

You can probably picture a vampire: Pale, sharply fanged undead sucker of blood, deterred only by sunlight, religious paraphernalia and garlic. They’re gnarly creatures, often favorite subjects for ...