High in the Andes, the Andean condor functions as a dominant ecological force shaped by extreme altitude and scarce resources ...
New archaeological evidence reveals that seabird guano—nutrient-rich bird droppings—was not only essential to boosting corn ...
In 1532, in the city of Cajamarca, Peru, Spanish conquistador Francisco Pizarro and a group of Europeans took the Inca ruler ...
Guano dramatically boosted the production of maize, and the surplus helped fuel the Chincha Kingdom’s economy.