忽聯想起進化論的討論：別的生物中有没有叛徒現像？

Obviously, betrayal requires complex intelligence, perhaps a necessarily consequence of it too. Then, what is the role of intelligence in an evolution?

I tend to think intelligence has a very weak link to the evolutionary process once it crosses some threshold. It may even be destructive hereafter.

生物往往有自我犧牲現像。犧牲和背叛在智能上可見不是對稱的？