Seabird guano fertilization boosted maize production in ancient Peru, fueling Chincha wealth, trade networks, and strategic Inca alliances.

Roughly 21 kilometers off Peru’s southern coast, the Chincha Islands hold vast deposits of seabird guano accumulated over ...

The use of seabird poop as a fertilizer for corn and other food crops supported the expansion of pre-Inca civilizations ...

In 1532, in the city of Cajamarca, Peru, Spanish conquistador Francisco Pizarro and a group of Europeans took the Inca ruler ...

Add Yahoo as a preferred source to see more of our stories on Google. Lead image: This bone balance beam scale demonstrates detailed carvings of birds. Credit: Courtesy of The Art Institute of Chicago ...

Ceremonial digging stick or paddle from coastal Peru showing seabirds and possible maize sprouting from abstracted fish and stepped-terrace motifs, The Met Museum 1979.206.1025. New archaeological ...

CARLSBAD, N.M. (KRQE) –Guano. If you look into the history of Carlsbad Caverns, you will most likely come across this term. In fact, some of the early visitors to the large underground cave system ...

Ancient Peruvians used bird guano to fertilize maize and build a major civilization in the Chincha Valley in Peru.

Though it authorized our nation's earliest imperialistic land grab outside our continent, the 1856 Guano Islands Act is little known today. The act stated that the United States could claim any island ...