well if if you breed a or 90lb or even 100lb coursing greyhound to a 50 or 60 lb bull and keep keeping the biggest you could end up with all the height and length of a greyhound and build and muscle of a bull something I would want but there's the reason behind it,my britches sister was 29 inch and racy out of a 1/2 cross and a 1/4 bred bitch so there's lots of permutations when breeding different types of dogs
when you put it like that i suppose it could happen,
it'd be nice to think that somewhere out there are lines of bull x that are athletic, not too big , say 75lbs and still able t