image: Field assistant Laura Stamp standing on the slopes of Mount Slipper, where fossils representing the oldest evidence of biomineralization were found. This material relates to a paper that appeared in the June 28, 2017, issue of Science Advances, published by AAAS. The paper, by P.A. Cohen at Williams College in Williamstown, MA, and colleagues was titled, 'Controlled hydroxyapatite biomineralization in an ~810 million-year-old unicellular eukaryote.' view more
Credit: [Credit: Phoebe A. Cohen]