Article
Sisyphean evolution in Darwin's finches.
Biological reviews of the Cambridge Philosophical Society - 1 Aug 2015
McKay Bailey D, Zink Robert M
Abstract excerpt
The trajectory of speciation involves geographic isolation of ancestral populations followed by divergence by natural selection, genetic drift or sexual selection. Once started, the process may experience fits and starts, as sometimes diverging populations intermittently reconnect. In theory populations might cycle between stages of differentiation and never attain species status, a process we refer to as...
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