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To: Neocon who wrote (24928)7/20/2000 1:17:31 AM
From: TigerPaw  Read Replies (1) | Respond to of 769667
 
, as long as there is time for them to breed successors, there is no selection
This is correct and identifies the reason that maladies such as altheimers are not easily selected out of the population. If a whole species tends to maladaption then all members will disappear. Actually most species that have lived on earth have gone extinct when faced with a better adapted competitor. If no efficent competitors are in place you can get some very unlikely creatures, such as the tree kangaroo of tasmainia.
TP