Sunday is Monkey Covers day here at YACB. Because there's nothing better than a comic with a monkey on the cover!
Bigby Wolf has been turned into a chimpanzee on Brian Bolland's cover to Jack of Fables #34 (2009).
(Standard disclaimer about how wolves who have been turned into chimps aren't really monkeys applies.)
Image courtesy of the GCD. Click on the image for a larger version.