User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4555457-20120826031513/@comment-5043481-20120830163933

There is actually no biological definition of a fish.

You have hagfish, lampreys etc but in fact they are as distantly related from each other as we are from them. They diverged quite early.

And no Cottonmouth, your argument is wrong. Humans are mammals, and by your logic we are all simple ameobas.