The surprise architects of Japan’s intricate underwater ‘crop circles’

These circles take up to nine days to build. Kawase, Okata & Ito/Scientific Reports/(CC BY-NC-ND 3.0) View 7 Images – By Bronwyn Thompson 2026 Jan 03 – In 1995, divers first noticed a group of bizarre sandy “crop circles” on the seabed around Amami Oshima Island, southwest …