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Thread: If evolution was real why are there still great apes?

  1. #311
    Galactic Ruler Spookycolt's Avatar
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    Quote Originally Posted by Dangermouse View Post
    No. I think you don't get the point. You ask random questions, which are answered, but you then repeat the question in a different way, showing no sign of learning anything. Some might call it trolling.
    Ok

    No one is forcing you to respond to it are they?

  2. #312
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    Quote Originally Posted by Spookycolt View Post
    Ok

    No one is forcing you to respond to it are they?
    Don't you get sick of being ignorant?

  3. #313
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    Quote Originally Posted by Spookycolt View Post
    Evolution doesn't pick out certain members to change, it changes them all.

    If it exists.
    You've had a lot of responses to this already, but I'll throw in my late two cents. The question would be a bit like being puzzled about how, if you're descended from your grandparents, you can also have cousins. There's just no paradox there to be explained. Your grandparents gave rise to multiple lines, one of which led to you and one to your cousins. Similarly, early apes gave rise to multiple lines, one of which led to humans, and others led to various other species, including the gorillas, and orangutans.

    Evolution has worked on those other lines, too. Mountain gorillas are not identical to other eastern lowland gorillas, because different evolutionary forces have pushed them in different directions, creating sub-species. Those, in turn, differ from western gorillas, which differ from organgutans, and gibbons. If you dug into the earth to a layer 10 million years ago, you wouldn't find any gorillas. You'd find proto-apes that were the ancestors of modern gorillas, but they'd be distinctly different species. All the species are changing over time, so if you dig back far enough, you no longer find anything resembling that species. Sometimes the changes happen very rapidly, sometimes very slowly, but they're always happening.
    Thanks from Djinn

  4. #314
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    Quote Originally Posted by Spookycolt View Post
    So why did the species only split once?

    You'd think if it happened once it would continue happening.

    Was there a trigger event that lead to it?
    Speciation splits happen when there's enough isolation of two groups that they go many generations without interbreeding, until enough changes have accumulated that they're no longer sexually compatible, thus allowing each group to pull free of the genetic tug of the other population. So, for example, you could have one group of proto-apes move into a rift valley while another stays in a surrounding jungle, with the terrain in between keeping the two separate. Each would slowly become more and more adapted to local conditions, through the process of natural selection. Eventually, that could even mean chromosome changes that make any offspring of the two groups infertile (like mules), at which point the two can diverge further, because there's no longer occasional interbreeding to average out their traits.

    So, species don't split off constantly. Generally, whatever variation takes place in an individual gradually influences the full population or gets drown out by it, and either way the full population remains a single species, generation after generation. It takes special circumstances for a split to occur.
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