A note from Daniel

Fundamentally, Darwin recognized a potential analogy between geological and biological processes specifically, the cumulative impact of small, gradual changes over extremely long periods. He reasoned that if a modest, meandering stream could, by eroding grains of sand one by one, eventually carve a mighty canyon, perhaps small random changes in a plant or animal could influence their relative reproduction and survival rates over successive generations, and thus gradually alter both form and function to yield new species.

Daniel Shortcut, page 74 · April 9, 2024 Save to shelf
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