<HTML>I think it was you, Don , who posted the strict definition...
evolution is a change... a progression.
All we need to see is ONE change, and we have evolution... assuming it makes the offspring MORE viable. If the offspring is LESS viable, then we have DEvolution, and then we must work in a coalmine... or whip it.
But I digress...
What happens (often) is that creatures develop specialized traits that allow them to survive in specific circumstances. These are inherent in the species as a whole, but become more exxagerated by crossbreeding with other creatures that have this same trait displayed more prominently. For example, you may have a population of giraffes that have only a 2 inch variation in the lengths of their necks. However, the taller ones will live longer... so they will mate with other tall ones, creating even TALLER ones. Then, there will come a time when the tallest ones have trouble supporting their heads, develop neck problems, and they die off before reproducing... hence the trait "stops" developing, or "evolving" in that species, and a new trait may come up... such as "long legs".
And it keeps changing, randomly... but always with an "eye" towards survival of the fittest... or Natural Selection, as Darwin called it.
It is the inherent variation IN a species that allows it to "migrate" from one set of traits to another. It really is more migration than "instantaneous transport", which is what the radiation/mutation thing is all about. It's just the subtle, little changes that make it all work.
I can give a million examples, but once you embrace the concept that it is a constant shifting from traits to traits, based on environment, it really loses its mystique. We aren't headed toward some beautiful predetermined Grand Prize of Evolution... we'll just keep shifting around, finding our niche on each planet we infect..., er, um, I mean... colonize.
Yours,
Anthony</HTML>
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Katherine Reece |
August 30, 2001 04:06PM |
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Don Barone |
August 30, 2001 08:18PM |
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Katherine Reece |
August 31, 2001 12:19AM |
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Anonymous User |
August 31, 2001 04:35AM |
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Claire |
August 31, 2001 05:13AM |
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Don Barone |
August 31, 2001 05:30AM |
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Claire |
August 31, 2001 05:53AM |
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Mikey Brass |
August 31, 2001 06:17AM |
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Claire |
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Don Barone |
August 31, 2001 06:28AM |
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Mikey Brass |
August 31, 2001 06:34AM |
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Don Barone |
August 31, 2001 06:34AM |
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Mikey Brass |
August 31, 2001 06:39AM |
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Anonymous User |
August 31, 2001 06:55AM |
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Mikey Brass |
August 31, 2001 07:16AM |
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Anonymous User |
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Mikey Brass |
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Don Barone |
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Mikey Brass |
August 31, 2001 06:55PM |
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Don Barone |
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Mikey Brass |
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Don Barone |
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Mikey Brass |
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Anonymous User |
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Don Barone |
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Michael Brass |
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Don Barone |
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Michael Brass |
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Don Barone |
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Michael Brass |
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Anonymous User |
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Anonymous User |
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Anonymous User |
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Michael Brass |
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Don Barone |
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Mikey Brass |
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Claire |
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Anthony |
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Claire |
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Claire |
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Claire |
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Claire |
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Mercury Rapids |
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lone |
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lone |
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Stephen Tonkin |
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lone |
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Claire |
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Adam |
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Don Barone |
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lone |
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lone |
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lone |
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lone |
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Anthony |
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D.Przezdziecki |
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Don Barone |
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D.Przezdziecki |
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Don Barone |
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Don Barone |
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Don Barone |
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J.H.v.d.Laar |
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J.H.v.d.Laar |
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J.H.v.d.Laar |
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J.H.v.d.Laar |
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jameske |
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Don Barone |
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Don Barone |
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Mercury Rapids |
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Deano |
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Mercury Rapids |
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Anthony |
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Don Barone |
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Michael Brass |
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Don Barone |
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Mikey Brass |
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Mercury Rapids |
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Mikey Brass |
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J.H.v.d.Laar |
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