[cld8483]

The rattlers around here could fuck you up, particularly if you can't get medical attention within a few hours because you're disabled on the ground alone at night. But fortunately, rattlers rattle (usually) so the snakes actually help people avoid this sort of accident.

Unfortunately, may people kill rattlesnakes when they become aware of them, which is usually after the snake started rattling. So there is now a selective pressure on rattlesnakes to stop rattling. Very misguided.