"A normal canine hind leg would have one femur, one tibia, one fibula, and 4-5 toes. X-rays of the affected leg revealed that Bella appears to have an extra femur, two tibias, two fibulas ...

Dogs were an important part of Roman life ... of the cartilaginous extensions of the ribs) and fusion of the fibula and tibia in some specimens. One exception was the relatively high number ...