Corals are key to ocean health because they support the densest, most diverse ecosystems and harbor species from turtles and algae to reef fish. UW scientists from the School of Aquatic and Fishery Sciences are looking at the burgeoning field of coral genetics to better predict, and maybe even prepare for, future threats to coral. In a new study, Ph.D. student James Dimond and Professor Steven Roberts use modern DNA-sequencing tools to figure out the relatedness of three similar-looking corals.