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Emperor Penguin in Antarctica. Stephanie Jenouvrier, CC BY-NDThe concept of a canary in a coal mine – a sensitive species that provides an alert to danger – originated with British miners, who carried actual canaries underground through the mid-1980s to detect the presence of deadly carbon monoxide gas. Today another bird, the Emperor Penguin, is…

über Emperor Penguins could march to extinction if nations fail to halt climate change — Home – The Conversation