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Brightly coloured and strikingly patterned, milk snakes are non-venomous New World snakes with a wide range throughout North and South America. They have smooth and shiny scales and their typical colour pattern is alternating bands of red-black-yellow or white-black-red. They are often confused with dangerous copperheads or coral snakes; however, milk snakes pose no threat to humans. Non-venomous milk snakes evolved to look like these venomous species in order to scare predators.