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Rasbora Tetras | 4 comments (4 topical, editorial, 0 hidden)

A correction to some of the above details: (none / 0) (#4)
by unclescott on Fri Jul 14, 2006 at 12:56:44 PM PST

The characins developed before Africa and South America split. In the last million years or so (since my freshman year) when North American developed the Panama connection with South America, tetras and especially the genus Astynax (Mexican tetra, blind cave tetra) have colonized north.

Characins seemed to have developed either in Africa or Asia and spread back and forth wgile they were pretty closely connected and after South America (look at the Western outline of Africa and the Eastern Shore of S.A.) had split off of Africa. That same group spread north and west across first Europe and then what would become N.A.

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Rasbora Tetras | 4 comments (4 topical, 0 editorial, 0 hidden)

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