Don't miss the big stories. Like us on Facebook. Beneath the forest canopy, or overstory, of towering trees is a second layer of vegetation known as the understory. It is composed of shrubs, saplings, ...
Striped maple tree leaves and flowers. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any ...
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