Mulefoots are classified as "Critical" by the American Livestock Breeds Conservacy & are the rarest American pig breed.
This means that there are less than 200 annual registrations of these hogs, and less than 2000 in the global population.
Mulefoot description:
The most distinctive feature of the American Mulefoot hog is the solid hoof, which resembles that of a mule or horse. Pigs
with solid hooves (also called syndactylism) have attracted the interest of many writers over the centuries, including Aristotle
and Darwin. The American Mulefoot is the only syndactyl breed with a documented history & breed standard. Mulefoots are
solid black with occasional white points (feet or nose), medium flop ears & a soft body coat. They are typically docile,
friendly & exceptionally intelligent animals.
In the early 1900’s, mulefoots were considered premium "ham-hogs", and were fed to great weights before slaughter.
A typical mulefoot today will reach 400-600 pounds by age 2.
For some years breeders claimed that Mulefoots were immune to hog cholera. That claim has been disproved, though the breed
does seem to possess remarkable hardiness