On Thu, 15 Mar 2007 08:49:11 -0500 Kent West <[EMAIL PROTECTED]> wrote:
[snip] > Genetic change may happen, but it's not caused (or guaranteed, or even > prompted to go in a positive or a negative direction) by extinction > events. The extinction of one sub-group does not automatically add > improvement to the surviving group. What you're saying is perfectly clear to me; Darwinian evolution requires as a *precondition* that there be some mechanism by which new genotypes / phenotypes can develop. Darwinism then explains how the ratios of old vs. new will trend over time. Celejar -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
