Ackshually, with only a few exceptions -- and contrary to popular belief-- bats aren't blind and most see quite well with their eyes. Like and subscribe for more bat facts.
Did you know that guano can act as fertilizer and has natural antifungal properties? Historically, it has also been sought as a source of nitrates in gunpowder and other explosives, and even had an important cameo in an Ace Ventura movie.