Check out this great article from Science Daily to learn about yet another reason to conserve mature trees and primary growth forests. Download the attached pdf version or check it out online at: http://www.sciencedaily.com/releases/2014/01/140115132740.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily+%28ScienceDaily%3A+Latest+Science+News%29