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Toward a New Philosophy of Biology: Observations of an Evolutionist

Book by Ernst Mayr · 4 quotes · Population, Evolution, Species

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Toward a New Philosophy of Biology: Observations of an Evolutionist Quotes

“I had found again and again that the most aberrant population of a species - often having reached species rank, and occasionally classified even as a separate genus - occurred at a peripheral location, indeed usually at the most isolated peripheral location.”

“A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which promote or guarantee reproductive isolation when the external barriers break down.”