Tag: crypsis
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Parallel Evolution of Melanism in Urban Squirrels
Cities offer an unprecedented global experiment for parallel evolutionary change: they similarly differ in several dimensions including climate, land cover, and pollution. Yet few…
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Natural Selection Favors Black Morph of Eastern Gray Squirrel in Cities
Eastern Gray Squirrels, Sciurus carolinensis, are some of the most visible and well-known urban animals in the Northeastern United States. Prior to European settlement of…