Do they revert to the wild boar type?
A. Feral pigs originate from escaped or released domestic pigs that have adapted to survive and breed in the wild. After several generations in the wild they tend to become more like their wild boar ancestors being taller, leaner and more muscular than their domestic relatives with well developed necks and shoulders and smaller and shorter hind quarters. They also have larger and longer snouts and develop tusks. Some individuals develop a crest or mane of longer bristles from their neck to the middle of their back. These can be erected when the animal is enraged leading to the name razorback. The colour size and shape of feral pigs varies considerably across Australia and probably reflects the characteristics inherited from the domestic breeds which originally escaped or were released.