New at The Design of Life: Can hybrids create new species?
At one time, hybrids were thought to be common among plants but rare among animals. But as more animal hybrids are found, some scientists ask whether hybrids are not a more common means of creating new species than previously thought. ...
An intense focus on Darwin's theory that natural selection is the main cause of new species has often meant that other possibilities are neglected.
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Note: This is one of Jane Harris's posts at Design of Life.