9. Water snakes (Nerodia spp.)
So-called water snakes of Nerodia genus, native to North America are widely spread from Canada, throughout the US up to Mexico. Although named water snakes, these are not aquatic snakes, though they do spend a lot of time in the water. They are heavily built snakes, with the average length of 4 feet. Perhaps the most common of water snakes, and also largest of them is the diamondback water snake. They are sometimes being mistaken for highly venomous cottonmouth snakes because of the similar looks. Although variable in color, they are usually darker brown, gray or olive green with darker patches. They are defensive snakes and will not hesitate to attack if feeling threatened.
