Start-up in Dubai wants to breed corals that are resilient and heat-tolerant. Coral reefs are to be rebuilt using small pieces of coral in breeding stations.
Underwater speakers are intended to imitate the hustle and bustle of the world's coral reefs. If coral reefs are willing to settle on an intact ecosystem, they are more likely to survive. But marine biologist Jessica Reichert from the Marine Biology Institute in Hawaii is skeptical as to whether this can work on a large scale.