Science and Technology How Oyster Reefs Are Holding Back the Ocean in Bangladesh: Living Structures Dissipate Up to 76% of Wave Energy, Capture Sediments, Regenerate Mangroves, and Protect Villages in a Country Where the Sea Has Already Consumed 160,000 Hectares and Advances Up to 200 Meters per Year Valdemar Medeiros 13/01/2026 at 17:20