Centuries-Old Bird Poop Helped Power a Pre-Inca Kingdom (opens in new tab)
The secret to a pre-Inca kingdom's power? Bird poop. New research shows how guano fertilizer transformed Peru's coastal desert into farmland.
Read the original articleThe secret to a pre-Inca kingdom's power? Bird poop. New research shows how guano fertilizer transformed Peru's coastal desert into farmland.
Read the original article