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non-ceph: cnidarian worm convergent evolution

monty

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This is not strictly ceph-related, but I think it touches on one of the reasons people like to study cephs: studying cephs because they evolved interesting behaviors independently of vertebrates is good as a "compare and contrast," while studying worm-like things that aren't worms is nifty for similar reasons, because ultimately, we're all worms at heart.

http://scienceblogs.com/pharyngula/2007/07/reinventing_the_worm.php

researching that also led me to some other bits that I found interesting: HOX genes in cnidarians may not show as much close relationship as we thought:

http://www.current-biology.com/content/article/abstract?uid=PIIS0960982206013339

but sea anemones and humans share more in common than one might expect:

http://scienceblogs.com/pharyngula/2007/07/common_elements_of_eumetazoan.php

If this is too non-ceph, I can shift it to supporters, but I suspect it might lead to some interesting on-topic-ish discussion...
 

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