Alex Mustard / Synchronous spawning of a mountainous star coral (Montastraea faveolata) at night. East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Alex Mustard / A colony of Cauliflower coral (Pocillopora damicornis) releasing gametes, Ras Mohammed Marine Reserve, Sinai, Egypt, Red Sea.

Alex Mustard / Annual spawning of a massive Starlet coral (Siderastrea siderea) releasing a cloud of gametes at night in late summer, Georgetown, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Alex Mustard / Redband parrotfish (Sparisoma aurofrenatum) pair swimming up into open water to spawn and release their gametes, East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.