The way they do find their food is echolocation. Echolocation has a different name, it is sonar. Bats can detect things as small as a human hair. Bats are the best bug control. Bats have only one baby a year.
Bats are the only flying mammal.
The smallest bat weighs less than five cents. A baby bat is born. Bat still sucking on milk. Bat starts catching insects. Mating season starts.