When the forerunners of the Appalachian Mountains formed hundreds of millions of years ago, they may have created geologic changes that in turn led new species to evolve, and some to become invasive species.
via LiveScience.com http://www.livescience.com/39328-mountain-rise-invasive-species.html
via LiveScience.com http://www.livescience.com/39328-mountain-rise-invasive-species.html
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