By Dalmeet Singh Chawla 30 January 2015 Ecologists have long wondered how two coral reefs—sitting right next to each other in the ocean—can be drastically different shades of color. The answer, according to a new study, has to do with some intriguing genetics. Read more at http://news.sciencemag.org/biology/2015/01/colorful-corals-protect-algae-inside