Aidan Dwyer won the Young Naturalist Award from the American Museum of Natural History after studying tree branch patterns during hikes through the forests of the Catskill Mountains.

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The rising tree population could disrupt the natural processes that cycle snow and energy through the region and increase the amount of carbon it stores, according to the researchers.

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Spengler was firing from "a natural depression" against a bank and a tree, he said.

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He showed how paints containing powdered metal can be splashed with acid to create metal oxides that give the effect of natural rusting, and how to make fake tree bark from a mold ingeniously colored using carpet scrapings.

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Wild Oats dropped United Natural as a primary distributor in 2002 and went with Tree of Life, a subsidiary of the Netherlands' Royal Wessanen.

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