Recent content by Hiding

  1. H

    Has a Single Mutation Ever Caused a Big Evolutionary Change?

    Yes, there are 'controller genes' called HOX genes that determine when, during development, other genes are turned on and off. Mutations to HOX genes therefore can have large effects. Gould's punctuated equilibrium theory in part works because of these genes. There are other examples, too...
  2. H

    Has natural selection stopped affecting humans?

    Here is a quote by Stephen J Gould on natural selection. Notice he does not agree with your claims here: "Throughout his last half-dozen books, for example, Arthur Koestler has been conducting a campaign against his own misunderstanding of Darwinism. He hopes to find some ordering force...
  3. H

    Has natural selection stopped affecting humans?

    No, I'm not arguing for gradualism. And, the other cases you bring up are not examples of natural selection. Yes, those are all examples of evolution. My statement is correct: natural selection is not random. In my post above, I was only correcting you on this point, not discussing other...
  4. H

    Has natural selection stopped affecting humans?

    I believe I can answer your questions with some relevant facts about how evolution and gene flow work. Although, we have good, but complicated answers to some of your other questions. First, selection pressure differs by environment, both social and natural. So evolution is differential across...
  5. H

    Has natural selection stopped affecting humans?

    Natural selection occurs because of differential survival and reproduction. It's ongoing in every species on the planet, including humans. To know where humans are undergoing natural selection, you have to ask which populations are under the highest selection pressure where people either live or...
  6. H

    Has natural selection stopped affecting humans?

    Natural selection is not random. It's in response to environmental factors, including social ones, that may vary over time. Mutation is random. Natural selection acts on mutation.
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