... instead of nature. However nature can act in ways far more diverse than human, and will have far more complicated properties. 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 whole machinery of life" (Darwin 83). The effects of nature may be slower than the ... , "the probability is that it only then first immigrated into that area" (Darwin 294). Although Darwin's paper was ground-breaking and sparked further research in the field, there are some holes and flaws in his reasoning. He br...

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