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Vampire bat friendships endure from captivity to the wild

The animals form social bonds that persist from a lab setting to the outdoors

vampire bats

Vampire bats, pictured here in captivity, form social bonds by exchanging regurgitated blood meals and grooming each other.

Belizar/shutterstock

By Jonathan Lambert

- More than 2 years ago

Are friendships formed with those we truly like? Or do we settle for whoever happens to be around?

This question is hard to answer in humans, and even harder in other animals.