It's the bumblebee bat of Thailand, the world's smallest mammal. Some bats hearing is so keen they can hear the footsteps of an insect walking on sand more than six feet away. Many bats find their way and locate prey using the sound of echoes. Bats are cruel by nature. Some bats are so kind they adopt orphans and will risk their lives to share food with less-fortunate bats.
Vampire bats are the only mammals that feed on nothing but blood.
By the way, vampire bats live only in Latin America, where most people will never even see one. Bats hang by their nose. They hang by their toes, counterbalanced by their upside-down weight. Bats get tangled in your hair. People may have thought this because bats fly over our heads hunting bugs.