Alas for Schizodactylus, the sandy deserts it prefers have retreated from north-eastern Brazil and its optimality there has vanished.

唉，对节肢，所喜爱的沙质沙漠已经从巴西东北部退却，在里的最佳体态已经消失。

In some sense, anytime anybody says it's optimal, sounds really good, sounds like it can't be beaten, but they've chose the optimality criteria.

从某种意义上， 任何时候有是最优的，听起真的很好， 听起好像是无可匹敌的，但他们选择了最优性标准。