A few nice animal pics images I found:
IMG_3600
Image by Li'l Wolf
Another monkey, although I'm not sure what kind.
You could walk into the enclosure with these, actually, which is why/how I was able to get some decent pics. :)
"IM HOOJ FAN OV ZEUSY AN FOEBE! WHICH KITTEH IZ NUMBR 8?"
Image by stratman2 (2 many pix!)
For some reason, of all the pics I showed him on Flickr's cat groups Joey liked this one best. Maybe it reminded him of himself.