The domestic pig (Sus scrofa domesticus or Sus domesticus: also swine or hog) is a large, domesticated, even-toed ungulate that traces its ancestry to the wild boar; it is considered a subspecies of the wild boar or a distinct species in its own right. Their head plus body length ranges from 0.9 to 1.8 m (35 to 71 in) and adults can weigh between 50 to 350 kg (110 to 770 lb). Compared to other artiodactyls, their head...