Traces the evolution and behaviour of the 83 living species of rattlesnakes - from East Coast timber rattlesnakes to California's desert dwelling sidewinders to South America's neotropical species. Explaining the functions of anatomical characteristics such as heat-sensitive facial pits, Manny Rubio also describes rattlesnakes' diverse habitats, feeding strategies, reproductive cycles, and seasonal hibernation patterns. Fascinating introduction to the most maligned reptile of the Americas.