Critterature: The Bat, a Natural Curiosity

In the natural world the bat is an anomaly, For it seems to me that neither bird nor beast is he. He can fairly fly, but lays no eggs, Can barely crawl, he has no legs, And yet this little guy's been able To inspire an opera*, films**, a fable***. Though his identity's unstable, For some he's acquired of Muse the label, And for that I must admire his versatility. *"Die Fledermaus" **Any one of hundreds of vampire movies ***One of Aesop's Author's Note: This is a little early, but Happy Halloween, PS.