Article
Molecular evidence for genetic mixing of Arctic and Antarctic subpolar populations of planktonic foraminifers.
Nature - 4 May 2000
Darling K F, Wade C M, Stewart I A, Kroon D, Dingle R, Brown A J
Abstract excerpt
Bipolarity, the presence of a species in the high latitudes separated by a gap in distribution across the tropics, is a well-known pattern of global species distribution. But the question of whether bipolar species have evolved independently at the poles since the establishment of the cold-water provinces 16-8 million years ago, or if genes have been transferred across the tropics since that time, has not been...
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