Penicillin , which was found from a dirty fungus , was the hard evidence that even the most insignificant species could posses the hidden benefit highly valuable for mankind . If a species died , than its secret of chemical benefit would died with it . Preserving the nature diversity could be the action which saves us from new and unknown virus or diseases in the future (``Why save . Agricultural From the 80 .000 edible plants existed in the world , humans depend on only 20...











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