Squirrels

This story about squirrels "heating their tails" and harassing rattle snakes is one of the stranger things I've heard in a while. Apparently adult squirrels can survive rattlesnake bites.

from the story:

Because the snakes, which are ambush hunters, can sense infrared radiation from heat, the warming makes the tails more conspicuous to them — signaling that they have been discovered and that the squirrels may come and harass them