Well, if you think back on the origin of our four legged friends, they ate the whole animal, raw. Raw is the key. I feed my girls raw chicken leg quarters on a regular basis but would never give them a whole piece of cooked chicken with the bone in. Cooked bones splinter easily.
Bones, besides containing nutrients that the girls need, keep their teeth looking great. Had I known about this several years ago, I could have saved about $300 for the teeth cleaning that Chase had done.