Sure, you know a little something about Elmer Fudd and Yosemite Sam. And sure, you know the name of the man who voiced Bugs Bunny for so many of the great Looney Tunes cartoons. But how easily can you ID the lesser-known characters? How well do you know some of the Bugs Bunny plot twists, or the lyrics he was fond of singing? Take our What's Up, Doc? Quiz and find out.