RE: Different bodyplans

From: glenn morton (glenn.morton@btinternet.com)
Date: Wed Oct 18 2000 - 17:11:55 EDT

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    Burgy wrote:

    > The article described a certain species of insect, one not common to our
    > locale. The thesis of the article was that the young offspring of this
    > insect normally fed on a certain plant (#1), but sometimes fed on a
    > different plant (#2). Those feeding on plant #1 grew to adulthood and
    > looked like X. Those that fed on plant #2 grew to adulthood and
    > looked like
    > Y. There was, as I remember, no resemblence at all in bodyplan between X
    > and Y -- they looked like entirely different species, as
    > different, say, as
    > grasshoppers and ants.
    >
    > Experiments were conducted on siblings, dividing a batch of offspring into
    > two parts and feeding each of them a different plant -- the phenomen was
    > verified completely.
    >
    > I don't recall at all if the subject of "phyla" was addressed in the
    > article. What was apparent was that (looking at the photos) the two
    > resulting groups could not, by any stretch, be looked at as the
    > same animal
    > -- or even remotely related to one another. The food ingested had almost
    > completely determined the adult form.
    >
    > I think this sort of supports the thesis in your paper, but it complicates
    > it somewhat. I always wondered if other experiments were undertaken (using
    > other food sources for the young insects) to see if other bodyplans would
    > result.

    I would like to know what article this is from. (For Roman, Burgy is one of
    my best English editors). :-)

    glenn

    see http://www.flash.net/~mortongr/dmd.htm
    for lots of creation/evolution information



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