Pigs are omnivorous and their diet largely comprises of plants and animals. These animals predominantly eat grasses, leaves, roots, fruits, and flowers.Pigs also rely on worms, insects, dead pigs, trees, bark and garbage for their food. pig is an animal that belongs to the genus Sus, with the family of Suidae. Pigs are classified into domestic pig as well as wild boar with exception of some other species. These species are considered to be highly sociable and intelligent.