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by cgrand-net
2739 days ago
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According to "An Association Between the Kinship and Fertility of Human Couple" (http://science.sciencemag.org/content/319/5864/813.long), third (or fourth) cousins have optimal reproductive success. Reproductive success is not just the number of children (because 1st or 2nd cousins couples tend to have more children but with associated health and/or reproductive problems), but the whole descendance. |
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