http://blogs.smithsonianmag.com/science/2012/03/trees-weathered-the-ice-age/ Ideas, innovations and discoveries from the world of science Thu, 23 May 2013 23:31:37 +0000 hourly 1 http://wordpress.org/?v=3.4 http://blogs.smithsonianmag.com/science/2012/03/trees-weathered-the-ice-age/comment-page-1/#comment-7404 Tim Upham Fri, 31 Aug 2012 02:34:34 +0000 http://blogs.smithsonianmag.com/science/?p=8958#comment-7404 That is how the dawn redwood survived the Ice Age, is by seasonally losing its needles. Just like deciduous trees losing their leaves, shedding its needles meant the trunk could conserve energy and prevent moisture lose. That is how the dawn redwood survived the Ice Age, is by seasonally losing its needles. Just like deciduous trees losing their leaves, shedding its needles meant the trunk could conserve energy and prevent moisture lose.

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