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10 animals that are bad for the environment

By: Bryan Nelson on April 14, 2010, 1:05 p.m.
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Of all the animals on Earth, humans are the most environmentally destructive. It is usually humans who are to blame for the major imbalances — global warming, the extinction crisis, over-harvesting of land and sea, overpopulation and industry. Fortunately, humans are capable of rapid cultural change. They always have a choice — and a chance — for change.