Each November in the days following the light of a full moon, coral colonies across the reef — spanning an area larger than the state of New Mexico — release millions of egg and sperm sacs ...

It's triggered by a series of environmental factors, including temperature and water salinity, as well as proximity to a full moon. When coral sync up the release of sperm and eggs, it increases ...

It was the seventh night after the August full moon, the peak spawning window predicted for the mountainous star coral. We loaded the boat and headed out to a coral reef near Summerland Key, Florida, ...