Why this colorful fish eats rocks to save coral reefs

The big-beaked, rock-munching fish that protect coral reefs - Mike Gil · 5:05 · Video: TED-Ed · Watch at the source

In short: Meet the parrotfish, a vibrant creature with beak-like teeth that survives on a diet of seafloor stone. This video explores how their unusual foraging habits serve as a vital defense for the coral reef ecosystem.

Mike Gil examines the biological importance of the parrotfish, a species named for its bright scales and distinctive beak. By devouring rocks as part of its breakfast, the parrotfish performs a crucial ecological function that helps keep coral reefs healthy and thriving.

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