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Study Says Coral Algae Have 'Eyes' Friday, July 31, 2009 - Anuradha Menon Home >> Headlines >> Biology   
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The single-celled algae that set up house inside hard corals and give reefs their vibrant colors may be able to see, a new study says. The algae—called zooxanthellae—have mysterious crystal-like deposits, which were found to be made of uric acid, a common element in light-reflecting structures in insect and animal eyes. The substance in the algae had been previously misidentified as calcium oxalate, which is often found in plants, the researchers say. (source: news.nationalgeographic.com)
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