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Are white sand beaches really made of parrot-fish poop?

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Not all white sand beaches are composed of parrotfish's handiwork—many of Florida's white sand beaches are made of ground-up quartz, for example. But if you're in an area with flourishing tropical coral reefs, there's a good chance much of your beach is comprised of fish poop. read more

Parrot fish create sand by crunching up corals. You can hear them crunch away, if you are snorkeling or diving near them. Quite amazing. The chewed up corals do come out in their poop. read more

In Hawaii, where beaches are constantly ranked the best in the world, a significant portion of that pristine, white, beautiful sand is actually poop. Yep, poop. Parrotfishes, or uhu in Hawaiian, are key players in regulating algae and reef life. read more

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