Why are bats nocturnal?
Bats are nocturnal because all of the animals that want to eat it are not nocturnal.if your woundering how they became nocturnal then your looking at the right page.They became nocturnal by the things in the air there was a specil assid that made them become nocturnal.And that assid is in the air every day entill night and thats another reason why bats are nocturnal.