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Author Topic:   How do you define the word Evolution?
EZscience
Member (Idle past 5153 days)
Posts: 961
From: A wheatfield in Kansas
Joined: 04-14-2005


Message 24 of 936 (260259)
11-16-2005 2:13 PM
Reply to: Message 1 by bkelly
11-14-2005 4:10 PM


Evolution is simply a character change in a population over time.
*Biological* evolution requires that this change have an underlying, heritable (genetic) basis.
However, behaviors can also change through 'cultural evolution' without any genetic foundation.
What many fail to recognize is that evolution is exclusively a population-level phenomenon - individuals cannot 'evolve'.
Evolutionary change can only be confirmed by measuring changes in quantifiable character sets among populations over time, or among populations that have been geographically separated for some period.

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 Message 1 by bkelly, posted 11-14-2005 4:10 PM bkelly has not replied

  
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