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A single yellow leaf hanging on a white birch tree glows from autumnal back-light, Boston Massachusetts. During the spring and summer,leaves get their green color from chlorophyll, a pigment needed for photosynthesis. As the sunlight wanes during the  Fall the chlorophyll moves from the leaves to the to the main body of the tree to nourish the tree throughout the  winter. As  the  green   chlorophyll recedes from the leaves the other pigments  that are always there are  made visible.
Original Rights Managed Stock Photography Created By Sam D'Amico