unpalatability

If the warning colorations that you have evolved to advertise your hard-won unpalatability are mimicked by too many edible free riders, your brand name will be cheapened and lose its protective value.

你辛辛苦苦进化而警告色是旨在告诉对手自己可不是什么味佳肴，如果这被太多效仿者冒充，而它们本身却都非味，那你牌子就算是砸了，再也起不了什么保护作用了。