Rat snakes or ratsnakes are members – along with kingsnakes, milk snakes, vine snakes and indigo snakes – of the subfamily Colubrinae of the family Colubridae. They are medium to large constrictors and are found throughout much of the Northern Hemisphere. They feed primarily on rodents and birds. With some species exceeding 3 m 10 ft in total length, they can occupy top levels of some food chains. Many species make attractive and docile pets and one, the corn snake

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