“What a marvelous cooperative arrangement - plants and animals each inhaling each other's exhalations, a kind of planet-wide mutual mouth-to-stoma resuscitation, the entire elegant cycle powered by a star 150 million kilometers away.”

—  Carl Sagan, book Cosmos

Source: Cosmos

Last update June 3, 2021. History

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Carl Sagan365
American astrophysicist, cosmologist, author and science ed… 1934–1996

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