Vampire saliva shows promise in the fight against heart attack and strokes. Europeans knew nothing of Vampire Bats until Christopher Columbus returned from Trinidad with accounts of bats that fed on blood. Fifty years later, conquistadors returning to Spain from their exploits with Cortes reported of a bat that fed on human blood. Charles Darwin was the first scientist to view and describe vampire bats in 183. Vampire bats have evolved with fewer teeth than any other bat since they do not chew their meal.
Vampire bats are the most agile bats.
They can walk run, hop, and stand on their hind legs before they leap into flight. Male vampires leave the colony in which they were born but females remain. The females in a colony are all related as are their immature male offspring. The breeding male is the only individual who was born elsewhere. Vampires cannot live more than two days without feeding.