PREVIEW: SEA BIRDS: GUANO: In "Ten Birds That Changed the World," author Stephen Moss recounts how sea bird droppings (guano), rich in phosphates and nitrates, were harvested off Peru and sold as fertilizer, making William Gibbs wealthy while exploiting a

Nov 28, 08:25 PM

PREVIEW: SEA BIRDS: GUANO: In "Ten Birds That Changed the World," author Stephen Moss recounts how sea bird droppings (guano), rich in phosphates and nitrates, were harvested off Peru and sold as fertilizer, making William Gibbs wealthy while exploiting and abandoning Chinese laborers. More tonight.

1865 Chincha Islands, Peru
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PREVIEW: PIGEONS: In "Ten Birds That Changed the World," author Stephen Moss describes the crucial role of homing pigeons in carrying messages securely during World War I and the Normandy invasion. More later on the magic of birds.
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