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The phrase, "the eyes are the windows to the soul," is attributed to several authors and philosophers. But the phrase, "your teeth are the windows to your health," can be attributed to Mohamed Bassiouny, DMD, MSc, PhD, who has been studying how teeth provide important clues to his patients' overall health for more than 30 years.

An unusual microorganism discovered in the open ocean may force scientists to rethink their understanding of how carbon and nitrogen cycle through ocean ecosystems. Researchers characterized the new microbe by analyzing its genetic material and said it appears to be an atypical member of the cyanobacteria that fixes nitrogen but lacks the genes for photosynthesis.