Hi, friends. I was reading this webpage. http://grammarist.com/usage/fish-fishes/ So it says fishes is used to refer to multiple species of fish. But then "the Fishes' " appears in some example sentences and really confuse me But after reading this webpage, I still don't understand why "fish's" can't be used in those example sentences in this webpage. Take this example sentence there, "the fishes’ scales were yellow" Why is 'fishes' ? If they mean some types of fish. ] Then I think it should be 'these fishes' scales were yellow'. "The fishes' "? I really have no idea why it is not "The fish's" Please help, thanks.