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How do moles breathe under ground, when the earth is frozen solid?

April 26, 2017breathe earth frozen ground Mathematics moles solid zoology

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How do moles breathe under ground, when the earth is frozen solid?

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Moles have twice as much blood and twice as much hemoglobin as other mammals their size so they can breathe more easily underground in low oxygen. They simply dig deeper tunnels to avoid frozen ground.