Mine canary, State Coal Mine, Wonthaggi, Victoria, Australia

Mine canary, State Coal Mine, Wonthaggi, Victoria, Australia
Mine canary, State Coal Mine, Wonthaggi, Victoria, Australia. The mine canary's job was entirely sacrificial. It was there purely to let the miners know if the air in the mine was getting too poisonous. If it fell of its perch and died then the miners knew the air was bad and they had to get out quick! So the canary did it's job by dying ...

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