What kind of bone is this? I mean, I think that it is a rib bone but from what? Yeah, cuz that is a question that everyone needs to ask from time to time. This is the third bone like this that we have found in the 20 years that we have lived here. We found 2 right after we moved in and one just a few days ago. The bothersome thing about this is every time Den digs up the garden we find one. It's probably a rib bone from a dog or something, right?!?!?!