What are environmental canaries?



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    Environmental canaries are what are essentially canaries in the coal mine for the environment. During the years of coal mining, miners would bring canaries into the mines; if the canaries died, it represented a lethal amount of toxic gases and miners were evacuated. Certain species, mainly amphibians and insects are used by scientists to judge the health of an ecosystem in the same manner. If certain species begin to go extinct, it represents a pivotal shift in the dynamic of the ecosystem that could drastically alter how it function from then on.

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