Comment author:PhilGoetz
21 August 2009 08:08:16PM
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4 points
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Multicellularity seems to have evolved multiple times independently
This isn't really true. Only organisms with mitochondria developed multicellularity. Mitochondria are the hard part.
eusociality developed in aphids, thrips, mole rats, termites, and at least 11 times in Hymenoptera
Similarly, it would be more informative to say that Hymenoptera developed a particular pattern of chromosomal inheritance once, and that led to 11 different types of eusocialism.
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This isn't really true. Only organisms with mitochondria developed multicellularity. Mitochondria are the hard part.
Similarly, it would be more informative to say that Hymenoptera developed a particular pattern of chromosomal inheritance once, and that led to 11 different types of eusocialism.
I wrote a post about the inevitability of human civilizations declining:
http://onestdv.blogspot.com/2009/08/inevitable-doom-of-human-civilizations.html