Lorraine Bennery / Smal elephant hawk-moth (Deilephila porcellus) on rattle (Rhinanthe sp.), Corbieres, France, May.

Alex Mustard / Grooved brain coral (Diploria labyrinthiformis) at night with polyps extended to feed, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Juergen Freund / Coral reefs exposed by the April 2nd 2007 earthquake that lifted the island of Ranongga by 3m, Solomon Islands, Pacific, July 2010.

Juergen Freund / Coral reefs exposed by the April 2nd 2007 earthquake that lifted the island of Ranongga by 3m, Solomon Islands, Pacific, July 2010.

Doug Perrine / Giant brain coral provides shelter for Grunts and Squirrelfish, Florida Keys, USA.

Jeff Rotman / Close up of Brain coral {Diplora strigosa} Caribbean

Juergen Freund / Brain coral (Diploria labyrinthiformis). Caribbean

Alex Mustard / A Grooved brain coral (Diploria labyrinthiformis) spawning at night, releasing pink and white bundles of eggs and sperm from the polyps within its grooves, East End, Grand Cayman, Cayman Islands, Brit...

Alex Mustard / A Symmeterical brain coral (Pseudodiploria strigosa) spawning at night, releasing pink and white bundles of eggs and sperm from the polyps within its grooves, East End, Grand Cayman, Cayman Islands, B...

Alex Mustard / A Symmeterical brain coral (Pseudodiploria strigosa) spawning at night, releasing pink and white bundles of eggs and sperm from the polyps within its grooves, East End, Grand Cayman, Cayman Islands, B...

Alex Mustard / A Symmeterical brain coral (Pseudodiploria strigosa) spawning at night, releasing pink and white bundles of eggs and sperm from the polyps within its grooves, East End, Grand Cayman, Cayman Islands, B...

Alex Mustard / A Symmetrical brain coral (Pseudodiploria strigosa) preparing to spawn at night, showing the bundles of eggs and sperm within the polyps prior to their synchronous release, with a Triplefin (Helcogram...

Alex Mustard / A Symmeterical brain coral (Pseudodiploria strigosa) preparing to spawn at night, with one gamete bundle beginning to be released, East End, Grand Cayman, Cayman Islands, British West Indies, Caribbea...