ScienceDaily: The answer to what’s killing the world’s coral reefs may be found in a tiny chip that fits in the palm of your hand. Scientists at Lawrence Berkeley National Laboratory and the University of California, Merced are using an innovative DNA array developed at Berkeley Lab to catalog the microbes that live among coral in the tropical waters off the coast of Puerto Rico. They found that as coral becomes diseased, the microbial population it supports grows much more diverse. It’s …