So, you know how we're taught what to look for on an organism to know to keep away from it? (Ex: The hourglass on a black widow, or the rattle on a rattlesnake.) Well, since animals in the wild can't be taught by other animals the way we can teach, how has it been imprinted in their minds too to recognize and keep away from signals like that? One can't just make the mistake once, and then learn from it, because after it makes it's first mess up once, it's dead. So how do they know?