Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet. Biodiversity is a measure of the health of ecosystems. Greater biodiversity implies greater health. Conservation of ecosystems and the species within them would help to maintain the natural balances disrupted by recent human activity, such as habitat destruction, illegal poaching, and overfishing. A report from the global conservation organization, WWF, has suggested that since 1970 the pressure we exert on the planet has almost doubled and the natural resources upon which we depend have declined by more than 33%.
In California alone both the Giant Kangaroo Rat and Island Grey Fox are critically endangered.
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