Corals, the building blocks of coral reefs, are incredible organisms. They can reproduce in two ways: sexually and asexually. Scientists have long used asexual reproduction—breaking off fragments of existing colonies and replanting them—to restore reefs suffering from hurricanes and other threats. But California Academy of Sciences scientist Raphael Ritson-Williams calls that approach “fundamentally flawed.” Instead, he’s working with an international group of scientists from Secore Internationa