>>Yes... but that is thinking along the lines of lamarckian evolution...

Actually I was thinking more Pavlovian, if you will. I didn't mean to imply that the snake might magically develop some new ability, but rather that perhaps one had evolved over time. Think more along the lines of a human that moves furniture for a living developing larger muscles where a pencil-neck like myself need not waste energy on such things. The effects are short term but the mechanism is purely darwinian.

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