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Freethought & Rationalism ArchiveThe archives are read only. |
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#41 |
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Join Date: Apr 2004
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#42 | |
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![]() Quote:
The cloaca is that single multipurpose(sex,defecation, egg-laying) hole that birds, lizards and monotremes have. |
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#43 |
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What about this ? http://www.sciencemag.org/feature/data/crow/
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#44 | ||
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![]() Quote:
But I thought it might also be interesting from an evolutionary perspective. |
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