A single boulder may prove that Antarctica and North America were once connected

A lone granite boulder found against all odds high atop a glacier in Antarctica may provide additional key evidence to support a theory that parts of the southernmost continent once were connected to North America hundreds of millions of years ago.

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<p><a href="http://www.physorg.com/news135518754.html">A single boulder may prove that Antarctica and North America were once connected</a></p> <p>A lone granite boulder found against all odds high atop a glacier in Antarctica may provide additional key evidence to support a theory that parts of the southernmost continent once were connected to North America hundreds of millions of years ago.</p>