Secret ocean rule: For 400 years, these villagers protected fish with ancient technique; Now scientists say it could help save world's dying coral reefs

Secret ocean rule: Eastern Indonesian coastal communities have long practiced sasi, a traditional ocean management system where areas are temporarily closed for fishing and harvesting. This centuries-old practice, rooted in local culture, allows marine life to recover, mirroring modern conservation principles. As coral reefs face unprecedented pressure, sasi is experiencing a revival, demonstrating the power of indigenous wisdom in addressing contemporary environmental challenges.