Vampire bats live in colonies that have bats in a range from 100 to sevel thousands of them. Sometimes, if a bat wakes up its prey, they would starve. They could only last for two days. The hungary bats "beg" for food to another bat of the colony. If the bats "says" yes, the bat with the food will regurgitate some of its own meal and share it. Vampire bats "adopt" other bats if the mother dies during the bats childhood. This is unique because other bats don't do this, people think that the cause of this is that the vampire bats colony is very close. They can also walk on four legs.