https://blogs.scientificamerican.com/tetrapod-zoology/mulefoot-and-other-syndactyles/

I have killed 3 of these recently. For some stupid reason I didn't get pictures. Two of the hogs were mule footed on all 4 feet, the 3rd was mule footed on the back feet.

All 3 were killed in Dallas County.

Another trait I see in the Dallas and Lowndes County areas a lot is hogs with waddles on both sides of their would be necks. Have seen a few in other areas but not near as often as in Dallas and Lowndes.

http://articles.extension.org/pages/63588/neck-wattles-in-feral-hogs