Vampire bats are very social creatures, as are many other bat species. Vampire bats will gather together in roosts. The communal roost offers them a place to meet. Other factors also play into this, as roost sites are usually scarce, and so a good bat cave may attract many bats.

These roosts form a structured society which provides a network of social support. Like many other bats, the vampire bat lives a long life. Many survive for up to 20 years in the wild. Evidence shows that these bats will remain with their same roosting group for many years, perhaps even all of their life. The colonies will usually include on male and several females along with the young.

When the bats return from the roost, they will often groom each other. Oftentimes, a bat that has failed to obtain food will beg for food, and the other bat will regurgitate the blood into the mouth of the other. Female vampire bats are particularly sociable as they will both share meals and care for the young of others. This behavior is almost unknown between unrelated individuals of any other type of animal!
As is highly prevalent, vampire bats are highly social creatures. They also have quite the heart! They are not cold and evil beings, but instead are intelligent and sociable bats!