The fifth mass extinction

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The biodiversity of an area is literally the number of species, both plant and animal, inhabiting the environment being examined. The species that are unable to adapt to environmental changes become extinct. This reduces biodiversity. Biodiversity has direct economic benefits to people.     - Besides food, living things provide us with many different products, such as fibers, paper, and timber.     - Living things are an invaluable source of medical drugs.     - Amphibian species may warn us of toxins in the environment.     - Wild organisms maintain a valuable pool of genetic... Show more

The fifth mass extinction