Wednesday, December 2, 2009

Ecosystems strong and fragile

Ecosystems are only as strong as the weakest link in the chain of life for example if the deer population is decimated by disease then the mountain lions may not breed in the mating season. The way a eco system can best survive is to diversify. the cougars must eat prey like jackrabbits and other rodents to survive. it is a careful balance of nature that allows the web of life to continue

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