Whose Teeth?

I was mowing yesterday (as I do almost every day now) and right in the middle of the back slope there was a jawbone, about 6 inches long. I have no idea who or what dropped it off, but here it is, now sitting in the torenia pot..too cool to toss out, to dirty for an art project. I would think maybe a coyote, but who around here eats coyotes? Either that or it was a Really Large Raccoon.