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The biovariety of the Amazon forest is unique and the richest of the world. One counts near a million botanical and animal species there, that is half of those listed on the planet, 2'500 sorts of fishes, 2'500 sorts of birds, 5'000 sorts of trees of more than 30 cms in diameter, among which 3'500 are listed. This biovariety constitutes a considerable reservoir on a dietary plan as well as medical plan, since existing medicines and 70% of those at present tested result from plants of the rain forest, and this, just in the field of the cancer.
The scientists of the whole world have difficulty in agreeing on these figures aiming at counting this extraordinary variety of plants and animals. This universe always seemed unlimited and inexhaustible but however, as any alive body, it possesses its limits.
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