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Present-day species of piranha result from a marine incursion into the Amazon Basin
About 4 million years BP, rise in sea level appears to have brought about the isolation of small populations of piranhas in the upper reaches of the great rivers. This situation favoured speciation and hence the formation of the present species.
About 4 million years BP, rise in sea level appears to have brought about the isolation of small populations of piranhas in the upper reaches of the great rivers. This situation favoured speciation and hence the formation of the present species.
Source: EurekAlert
Posted on: Tuesday, Dec 04, 2007, 11:19am
Views: 1124
Posted on: Tuesday, Dec 04, 2007, 11:19am
Views: 1124
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