We learned that bats are the only flying mammal.  They are nocturnal and come out at night.  They love to eat mosquitoes which we were so glad to hear!  We even have things in common with bats - we are warm blooded, have live births and have hair!  Bats need to eat half their weight every night too.  We even got to touch a real flying squirrel that lives in the forest and comes out at night with the bats.