Some 100,000 years ago, two different species mated and their hybrid offspring gave rise to the Appalachian tiger swallowtail butterfly species, researchers have found.
Source: http://www.msnbc.msn.com/id/44521557/ns/technology_and_science-science/
Some 100,000 years ago, two different species mated and their hybrid offspring gave rise to the Appalachian tiger swallowtail butterfly species, researchers have found.
Source: http://www.msnbc.msn.com/id/44521557/ns/technology_and_science-science/
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