Acorn worms live in burrows on the seafloor so you’re not likely to ever see one. But you may see their absolutely enormous piles of poop. Snorkelers and divers have noted them for years and Nat Geo ...
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White sand beaches: You're sunbathing on fish poop
Find out how parrotfish, zooxanthellae, calcium carbonate (aragonite), and poop combine to make the white sandy beach ...
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