| dtewi said: No natural selection has occurred here. This is just the snake changing the mechanism for which it gives birth to allow for the survival of its kids. If they were brought to warmer weather, their method of birth would revert to eggs. This isn't evolution. The snakes aren't evolving before our very eyes, they had the ability to give birth to live babies and eggs. When the snakes that are better fit to give live births survive and pass those genes on and the ones that aren't fit for live birth die, then the snakes would be evolving. But right now, they're not evolved. They're just snakes that are deciding which type of birth would be better and act accordingly. |
Erm, that is the next step in this whole thing, right? The snakes who's genes are unfit to give live birth will slowly die.
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