Rat Snake
Rat snakes are medium to large constrictors that can be found through a great portion of the northern hemisphere. They feed primarily on rodents and birds and, with some species exceeding 3 m (10 feet), they can occupy top levels of some food chains. Many species make attractive and docile pets and one, the corn snake, is one of the most popular reptile pets in the world. Other species can be very skittish and sometimes aggressive but bites are seldom serious. Like nearly all colubrids, rat snakes pose no threat to humans. Rat snakes were long thought to be completely nonvenomous, but recent studies have shown that some Old World species do possess small amounts of venom (amounts so small as to be negligible to humans).
Previously, most rat snakes were assigned to the genus Elaphe but many have been since renamed following mitochondrial DNA analysis performed in 2002. For the purpose of this article names will be harmonized with the TIGR Database.
Read more about Rat Snake: Taxonomy, Rat Snakes in Captivity
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