I would be interested if there was ever a known use of the saw teeth being used to cut out of a chopper or plane. I believe a Randall plus adrenaline would get it done, but have never seen a real life example. As far as using saw teeth on bone, it wouldn't take much of a cut to then break the bone. Wood is a different story. If you did a small cut on top and then on the bottom of a branch or small sapling, you could break it off.

Pap