Last quarter I took the (required) public speaking course. One of our assignments was to do an informative speech on pretty much any topic of our choice (barring certain...sensitive topics, like religion or controversial politics, that is). I chose gray wolf communication, mostly because it was something that I wouldn't have to study too hard for -- what with being amply familiar with it already...and having all the resources I could possibly want lying around in my own library.
Visual aids being a requirement, this is one of a set of overheads I made and am just now getting around to uploading. Sketched in Painter and then outlined in Flash. And, no, the overheads didn't have the copyright information on them.