Arizona has 13 species of rattlesnakes, more than any other state. Leave rattlesnakes alone if you find them, and be on the lookout when you are outside for them.
Many people believe that you can tell how old a snake is by the number of segments in the rattle. However, this is incorrect. A snake gains a segment each time it sheds. Sometimes a snake can shed more than once a year. In addition, segments often break off.
Rattlesnake Safety
Offer them respect, observe them from a safe distance, and then leave them to perform their valuable ecological function. The only good snake is a live snake!
Most rattlesnakes have relatively weak venoms when compared to the world's true vipers and cobras. Copperheads and water moccasins have comparatively weak venoms as well.
Rattlesnakes will make every effort to avoid contact with people. We are far more dangerous to this secretive animal than it is to us. In almost every case, we are treading on the snakes' home territory when we encounter them, and in almost every case, the rattlesnake looses its life. Many bites are the result of someone trying to capture, kill, or handle the snake, and a good number of bites occur to snake keepers, both private and professional. The bite is a defensive reaction and should not be considered an act of aggression. The rattlesnake's rattle offers the snake a means of communication, designed to warn larger animals of their position.
In the United States, humans experience about 8000 bites from venomous snakes each year. Of those, an average of 12 per year, less than 1%, result in death. Far more people die each year from bee stings, lightning strikes, or almost any other reason.