I may be misunderstanding you, but I thought you were suggesting that there is a non-arbitrary set of physiological features that vertebrates share but fish don’t. I was pointing out that this doesn’t seem to be the case.
No, I’m suggesting that I don’t care about fish.
I may be misunderstanding you, but I thought you were suggesting that there is a non-arbitrary set of physiological features that vertebrates share but fish don’t. I was pointing out that this doesn’t seem to be the case.
No, I’m suggesting that I don’t care about fish.