There are 32 species of rattlesnakes that range from southern Canada to Argentina and 16 species
live in the US (Eastern
Diamondback, Western
Diamondback, Sidewinder, Lower California, Timber, Rock, Speckled, Blacktail, Twin - spotted, Red Diamond, Mojave, Tiger, Western, Ridgenose, Massasauga, and Pigmy rattlesnake).