Thursday, October 15, 2009
Birth of the Appalachians triggered mass extinction
The birth of the US mountain chain may have led to a major ice age and a mass extinction.
Birth of the Appalachians triggered mass extinction
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The birth of the US mountain chain may have led to a major ice age and a mass extinction.
The birth of the US mountain chain may have led to a major ice age and a mass extinction.
No comments:
Post a Comment