Starting at the bottom left, and then going clockwise around Central Valley, you'll see drastic color changes among these varying salamanders. Which factor, or force, caused those adaptations to change? You're saying that it wasn't environment - And if you want to stick with that - that's fine. I do expect you, however, to tell me what it was that caused those changes. (Remember, the original population looked like the
eschscholtzii)
Also, you've not addressed the crucial question of my last post, which asked what limiting biological factor keeps small changes over time, which you've admitted take place, from continuing indefinitely, eventually creating large changes over longer periods of time. What biological mechanism limits those changes?