warty pig Sus philippensis Nehring, 1886 – Philippine warty pig Sus scrofa Linnaeus, 1758 – Wild boar Sus verrucosus Boie, 1832 – Javan warty pig The pygmy hog, formerly Sus salvanius, is now placed in the monotypic genus Porcula. Fossil species †Sus australis Han, 1987 – Early Pleistocene of China †Sus bijiashanensis Han et al., 1975 – Early Pleistocene of China †Sus falconeri – Pleistocene of the Siwalik region, India †Sus houi Qi et al., 1999 – Pleistocene of China †Sus hysudricus Falconer and Cautley 1847 – Pliocene of India †Sus jiaoshanensis Zhao, 1980 – Early Pleistocene of China †Sus liuchengensis Han, 1987 – Early Pleistocene of China †Sus lydekkeri Zdansky, 1928 – Pleistocene of China †Sus officinalis Koenigswald, 1933 – Middle Pleistocene of China †Sus peii Han, 1987 – Early Pleistocene of China †Sus subtriquetra Xue, 1981 †Sus strozzi Forsyth Major, 1881 - Pliocene and Early Pleistocene of Europe †Sus xiaozhu Han et al., 1975 – Early Pleistocene of China Domestication Pigs have been domesticated since ancient times in the Old World. Pigs were domesticated on each end of Eurasia, and possibly several times. It is now thought that pigs were attracted to human settlements for the food scraps, and that the process of domestication began as a commensal relationship. Archaeological evidence suggests that pigs were being managed in the wild in a way similar to the way they are managed by some modern New Guineans from wild boar as early as 13,000–12,700 BP in the Near East in the Tigris Basin, Çayönü, Cafer Höyük, Nevalı Çori. Remains of pigs have been dated to earlier than 11,400 BP in Cyprus that must have been introduced from the mainland which suggests domestication in the adjacent mainland by then. Pigs were also domesticated in China, potentially more than once. In some parts of China pigs were kept in pens from early times, separating them from wild populations and allowing farmers to create breeds that were fatter and bred more quickly. Early Modern Europeans brought these breeds back home and crossed them with their own pigs, which was the origins of most modern pig breeds. In India, pigs have been domesticated for a long time mostly in Goa and some rural areas for pig toilets. This practice also occurred in China. Though ecologically logical as well as economical, pig toilets are waning in popularity as use of septic tanks and/or sewerage systems