Group: alt.philosophy · Group Profile · Search for Lichens in alt.philosophy
Author: Hamady
Date: Sep 15, 2008 20:17
...) moths resting on those trees could easily be noticed by the birds that fed on them and therefore they had very little chance of survival. Fifty years later, in woodlands where industrial pollutionhas killedthe lichens, the barks of the trees had darkened, and now the light- coloured moths became the most hunted, since they were the most easily noticed. As a result, the proportion of light-...
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