fitness

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Related to biological fitness: Darwinian fitness
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Nevertheless, the fact that adult males had a greater tendency to be the ones beleaguering the flying squirrels led Onishi and his co-authors to speculate that a measure of flaunting biological fitness to the females is in play.
Errington applauds the biological fitness of the mink for its ecological niche, but like Seton he also incorporates the pathetic fallacy: where Seton's mink was a "Hound," Errington's becomes a "real pro" and "general practitioner.
398), Gregory Pryor compared Charles Darwin's biological fitness (10 children) with English pop idol Mick Jagger (seven children by three women, two being wives).