Study suggests Alaskan tree refuge existed

U.S. scientists say they've found strong evidence an Alaskan tree refuge existed during the last glacial period, 17,000 to 25,000 years ago.

If you want to include this story in your blog, copy and paste this formatted text:

<p><a href="http://www.physorg.com/news73670076.html">Study suggests Alaskan tree refuge existed</a></p> <p>U.S. scientists say they've found strong evidence an Alaskan tree refuge existed during the last glacial period, 17,000 to 25,000 years ago. </p>