See other History Articles
Title: erectus walks amongst us
Source:
[None]
URL Source: http://erectuswalksamongst.us/
Published: Sep 10, 2009
Author: Richard D. Fuerle
Post Date: 2009-09-10 09:56:23 by Itistoolate
Keywords: None
Views: 120
Comments: 3
(1 image)
Post Comment Private Reply Ignore Thread
Top • Page Up • Full Thread • Page Down • Bottom/Latest
Begin Trace Mode for Comment # 1.
#1. To: Itistoolate (#0)
Good stuff.
There are no replies to Comment # 1. End Trace Mode for Comment # 1.
Top • Page Up • Full Thread • Page Down • Bottom/LatestWhen formerly separated populations in different territories intermix and interbreed, the percentage of each allele in the hybrid population will be approximately the average of its percentage in the parent populations, weighted by the relative sizes of the populations. Those percentages will be farther away from the optimal percentages for each population in their former territories, a loss in fitness for the hybrid population. And, unless the individuals in the hybrid population continue to move about in the combined territories and interbreed, thereby keeping their alleles at non-optimal percentages, individuals will tend to migrate to the territory that they are most adapted to and, by selection for adaptation to that territory, the percentages of the alleles in the population in each territory will once again gradually move towards the optimal percentages. In other words, without continual random interbreeding, two (genetically different) populations will once again form. As soon as nature is permitted to take its course, different varieties, races, and species will evolve all over again – egalitarianism requires a never-ending battle against nature.
Replies to Comment # 1.