I didn’t know … This is so interesting!! Sharing ….
This video is called Why Leaves Change Color: Untamed Science.
From eNature Blog in the USA:
What Makes Autumn’s Leaves So Colorful?
Posted on Monday, October 06, 2014 by eNature
Sometime between now and the middle of November, the trees in North America’s eastern broadleaf forests will reach their full fall glory.
From Vermont’s Northeast Kingdom and New Hampshire’s White Mountains to the Shenandoah Valley and beyond, leaf peepers will bring traffic to a standstill on beautiful fall weekends. By the carful and busload, they’ll come to gawk at the beautiful countryside.
But what will they be seeing? How do leaves end up in such spectacular colors?
Leaf color arises from various chemicals within trees. It’s the strength as well as the presence or absence of compounds like tannins, xanthophylls, and carotenes that determines fall hues in the scores of tree species found in the East.
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