One of the hallmarks of autumn is the beautiful array of leaves changing color. But why do leaves change from green into reds, oranges, yellows, and browns in the first place? Trace has all the answers.
via Discovery News http://news.discovery.com/earth/videos/why-do-leaves-change-color-in-the-fall-video.htm#mkcpgn=rssnws1
via Discovery News http://news.discovery.com/earth/videos/why-do-leaves-change-color-in-the-fall-video.htm#mkcpgn=rssnws1
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