Maoz Fine

Corals have a hormonal clock and it looks surprisingly like ours

Corals have a hormonal clock and it looks surprisingly like ours Gaby Clark Scientific Editor Robert Egan Associate Editor A three-year study has cracked open the hidden biology behind coral reproduction, revealing hormone cycles that echo those of humans and other animals, and a new way to detect reef distress before it's too late. Once a year, on cue, corals across a reef release their eggs and sperm into the sea simultaneously. Coral reproduction is one of nature's most spectacular events.