A silent coral reef came back to life after scientists played recordings of healthy reefs underwater

British and Australian scientists played recordings of healthy reefs underwater in Australia's Great Barrier Reef.

The recordings included sounds from snapping shrimp, feeding fish, and other marine animals that create a distinctive acoustic environment.

Silent coral reefs that received the soundscape treatment attracted more marine life and showed signs of recovery.

The experiment used underwater loudspeakers placed on experimental reef patches built from dead coral on sandy seabeds.

Sound is a critical cue for juvenile fish to recognize suitable habitats, and restoring it may aid reef restoration.