Western Diamondback Rattlesnake - Earth.com

This snake can be found in the southwestern United States and in Mexico, where it is to blame for the majority of fatal snakebites in both countries. Growing up to seven feet in length and weighing as much as 15 pounds, the western diamondback rattlesnake is the second largest venomous species of snakes in North America. Photo Credit: Audrey Snider-Bell

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