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Species and their formation

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Species and their formation

Postby fran008 » Fri Jan 20, 2006 7:13 pm

Although many butterfly species are divided into local populations among which there is little gene flow, these species often show relatively little morphological variation among populations. What studies are needed to determine what maintains this morphological similaroty?
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Postby MrMistery » Sat Jan 21, 2006 1:59 pm

No study is needed, it's natural selection. Even if without any gene flow, if the environmental conditions are similar than the buterflies will also look similar.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
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