Pigs are part of the Animalia kingdom, the Chordata phylum, the Mammalia class, the Artiodactyla order, the Suidae family, the Sus genus, and the sus scrofa scrofa species. This taxonomy runs from the most general classification of Kingdom to the specific singular classification of species.
Taxonomy is the system that scientists use to classify all living organisms by like kind. Pigs as a species originated in Asia and Africa but the domestic pig is now found worldwide. Pigs are omnivores that prefer roots and tubers. They live about eight to 15 years in the right conditions. Pigs are very social animals and tend to live in herds.
Pigs can be as small as about 65 pounds to as large as over 700 pounds. They come in a variety of colors including black, brown, grey, pink and white. Noticeable features of pigs include a flat, upturned nose or snout and a tiny, curly tail.
The Suidae Family contains eight different types of species of pigs, swine and hogs. Pigs are related to such animals as the hippopotamus. Pigs have a wonderful sense of smell and hearing but cannot see very well. They use squeaks and grunts to communicate with each other.