Here I have done some studies of the boar's hind leg structure. This bone structure differs in several ways to that of the front legs. Notice how the hind foot is much more raised, allowing for larger hooves and more balance. The foot bone is also larger in size which helps to accommodate the weight of the boar and spread it out evenly.
|Boar back leg bones and knee joint|
|Side view of the back foot bones|
|Front view of the back foot bones|