However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing, kidney problems (such as change in the amount of urine). This is not a complete list of possible side effects.
They are more active when it is cooler, but they can and do come out of hiding at any time of the day. Here in the desert, Arizona Rattlesnakes can easily overheat and die if they cannot find a cool place to keep themselves cool.
Rattlesnakes. Blacktail Rattlesnake Â© Paul Morris. Video Closeup of 36 Inch Diamondback Rattlesnake. The Diamondback can reach lengths of about 72 and account for about 80% of all rattlesnake bites in Arizona. Video of Actual Rattlesnake Bite: Tucson, Arizona. Rattlesnakes do not always give the distinctive rattle warning before striking.