Namio, thanks for taking my question seriously.

What prompted my question was, in my Principles of Biological Diversity class, we learned bout the evolution from fish to amphibians. I do think this is a legitimate question, as I know there are more than a few amphibians that lack lungs, and some fish (lungfish that have lungs. Also, do ALL fish have scales? It seems like some eels lack scales...

If you aren't interested in this topic people, don't participate. It's as simple as that.