Very early, he establishes the analogous of natural selection in the domestic setting: "The key is man's power of accumulative selection: nature gives successive variation; man adds them up in certain directions useful to him" (Darwin 30). ... How "variations manifestly useful or pleasing to man appear only occasionally, the chance for their appearance will be much increased by a large number of individuals being kept" (Darwin 41). ... Where "man can act only on external and visible characters [nature] can act on every internal organ, on every shade of constitutional difference, on the ...

• Word Count: 3127
• Approx Pages: 13
• Has Bibliography
• Grade Level: Undergraduate