How does coral communicate?

This Brains On! episode explores coral reefs, focusing on how coral communicates. The co-hosts discuss coral's structure (polyps forming colonies and reefs), its symbiotic relationship with algae (providing color and nutrients), and recent research indicating coral communication through chemical signals and ultrasonic sounds. Marine biologist Camila Rimaldi-Ibanez is interviewed, explaining her research on coral sounds and the impact of coral bleaching. Listeners learn that coral, while seemingly inanimate, is a complex animal with intricate communication methods and a vital role in marine ecosystems. The episode concludes with a summary of key facts about coral and its importance.