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Material from Atlantic canary was split to Domestic canary on 22 March 2006 from this version. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted so long as the latter page exists. Please leave this template in place to link the article histories and preserve this attribution.
Canaries are used in coal mines to indicate the presence of poisonous gases. Since their motabalism is so much greater than Humans, they die quickly indicating the presence of natural gas, carbon monoxcide, or methane. (text added by IP User:65.126.184.253 (talk) (01:07 17 Sept 2009 (UTC))