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Gr 2–4—The conditions needed to maintain the health of a kelp forest's ecosystem involve interdependent factors. Buhrman-Deever explains the science behind what happened to kelp forests when hunters brought the otter to near extinction in the early 1900s. Why were otters desirable? Their fur, which has "around one million hairs in a space the size of a quarter," is extremely warm. However, the international fur trade was not beneficial to everyone. As a result of the industry boom and an influx of e...Log In or Sign Up to Read More