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Evolution all at sea

Evidence of gene flow between plankton in the Arctic and Antarctic is one surprise. Another is the discovery of hitherto hidden genetic diversity in these organisms.

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Figure 1: The three species of foraminifera studied by Darling et al.1.


Figure 2: Ecological differentiation in three distinct genetic groups of the subtropical–tropical planktonic foraminifer Orbulina universa7.



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Correspondence to Richard D. Norris or Colomban de Vargas.

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Norris, R., de Vargas, C. Evolution all at sea. Nature 405, 23–24 (2000).

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