The tiger rattlesnake, which lives in Arizona and northern Mexico, produces a highly unusual venom. This venom is deadlier than that of any other rattlesnake, yet also the simplest.

Prey cannot evolve resistance to tiger snake venom. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2017 / 08 / 170822092248.htm. University of Queensland.