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Old 10-14-2008, 01:19 PM   #1
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The Jesus of the shark community?

Scientists confirm shark's ‘virgin birth’

Scientists confirm shark's ‘virgin birth’ - Science - MSNBC.com
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Old 10-14-2008, 01:28 PM   #2
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did they name the baby shark Bono?
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Old 10-14-2008, 01:55 PM   #3
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have u2 jumped the shark?
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Old 10-14-2008, 05:33 PM   #4
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I am studying parthenogenic snails, they end up going sexual because of vulnerability to parasites, evolution in action people.
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Old 10-14-2008, 05:46 PM   #5
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^ Is that considered voluntary or involuntary behavior? The parthenogenesis I mean.
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Old 10-14-2008, 05:52 PM   #6
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It's involuntary, in so far as the females don't actively choose a mode of reproduction, it's a function of differential survival.

The asexual reproductive mode dominates when a single female has colonised a marsh or oxbow lake, but in time the proportion of sexual reproduction increases because parasites render the asexual forms sterile.

The ones I'm looking at are a little bit old though, 110 million years
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