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Back to David's theory of evolution: stasis,Darwin's problem (Evolution)
by dhw, Friday, August 21, 2020, 07:51 (148 days ago) @ David Turell
DAVID: Punctuated equilibrium was a theoretical answer that doesn't work:
https://aeon.co/essays/catastrophe-drives-evolution-but-life-resides-in-the-pauses
QUOTE: "Evolutionary biologists have documented countless examples of rapid evolutionary change in the past few decades. Most of these are in species that are experiencing some sort of extreme environmental disturbance, such as invaders that have been released into a novel habitat or plants that rapidly adapt to the toxic soil of mine tailings. All of these examples show us that substantial evolutionary change can happen rapidly. They suggest that natural selection, rather than being a slow and gradual shaper of species, is most evident in brief bursts of change following major disruption.[/b] (David's bold)
dhw: All of this, including your bold, is a description of punctuated equilibrium. It DOES work! It's Darwin's gradualism that doesn't work.
DAVID: The term is descriptive, not a working mechanism.
You said it didn't work as a theoretical answer. I took this to mean you didn't think the theory was correct.
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