And in terms of fishes -- fishes appeared 500 million years ago, and they're pretty modern, just 50 million years ago, so -- so interestingly, they give away their ancestry as they develop.
물고기에 관해서 보면 물고기는 500만년전 생겨났죠,그들은 꽤 현대적입니다, 겨우50만년전,그래서-- 그래서 흥미롭게도,진화하면서 초기의 특성을 잃습니다.