Since Arnie was a street dog when I found him, his parentage has always been in question. It doesnt help that he is a ‘pit bull’, which could mean any number of things– line up 50 ‘pit bulls’ and you will get short-and-stout to long-and-lean and everything in between. Black, white, red, big spots, small spots, brown with black stripes, black with brown stripes, everything. ‘Pit bulls’ are like a Dr. Seuss book.
Arnies round, doe-eyes and alligator smile definitely put him in the ‘pit’ camp, but his ears/profile are rather labrador-ish, and I think from watching this obedience training video that Arnie almost certainly has boxer in him as well: