Bird droppings helped build one of ancient Peru’s most powerful kingdoms
Science Daily
March 8, 2026
New research suggests seabird guano helped transform the Chincha Kingdom into one of the most prosperous societies in ancient Peru. Chemical clues in centuries-old maize show farmers fertilized their crops with guano gathered from nearby islands, dramatically boosting yields in the desert landscape. The resulting agricultural surplus fueled trade, population growth, and regional influence.
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Originally published on Science Daily on 3/8/2026