image: This is the shell and pearl of P. fucata. This image relates to an article that appeared in the August 13, 2009, issue of Science Express, published by AAAS. The study, by Dr. Michio Suzuki of University of Tokyo in Tokyo, Japan, and colleagues, was titled, "An Acidic Matrix Protein, Pif, Is a Key Macromolecule For Nacre Formation." view more
Credit: Image courtesy of Science/AAAS