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SInaloan Milk Snake
One of Mexico's herpetological crown jewels, this Milk Snake occurs sympatrically with the West Mexican Coral Snake, making the aposematic coloration exhibited between the 2 species especially useful to the non-venomous Milk Snake, which could be confused with the much more dangerous Coral Snake. In this case, the moniker "red touches black, friend of Jack" applies. Further South in Central American more species of Coral Snake exist, and the color patterns don't always follow the well known rhyme .