Ingo Arndt / Fan Coral (Echinogorgia sp) from Indo-Pacific, in collection at Senckenberg Museum, Frankfurt, Germany.

Jordi Chias / Spotted catshark (Scyliorhinus canicula) just hatched from egg case that is on Seafan (Paramuricea clavata), Ullastres seamount, Costa Brava, Llafranch, Catalunya, Spain

Georgette Douwma / Polyps on soft coral, Octocoral. West Papua, Indonesia. Indo-West Pacific.

Linda Pitkin / Scrawled filefish (Aluterus scriptus) amongst branches of gorgonian coral (Eunicea) Bonaire, Leeward Antilles, Caribbean.

Sue Daly / Gorgonian coral (Paramuricea placomus) Trondheimsfjord, Norway, July.

Sue Daly / Gorgonian coral (Paramuricea placomus) Trondheimsfjord, Norway, July.

Franco Banfi / Red fan corals (Paramuricea clavata), Yellow gorgonian, (Eunicella cavolini) and Yellow cave-sponges (Aplysina cavernicola), Ischia Island, Italy, Tyrrhenian Sea, Mediterranean.

Franco Banfi / Branches of a gorgonian coral (Plexaurella sp) and Common sea fan (Gorgonia ventalina) Santa Lucia, Camaguey, Cuba, Caribbean Sea, Atlantic Ocean

Solvin Zankl / Shoals of fish near Marine octocorals (Astrogorgia sp) Raja Ampat, West Papua, Indonesia, Pacific Ocean.

Alex Mustard / Mediterranean anthias (Anthias anthias) swarm over gorgonians (Paramuricea clavata). Marine Protected Area of Portofino (Area Marina Protetta, Portofino), Liguria, Italy. Mediterranean Sea. Model Rele...

Franco Banfi / Red sea fan (Paramuricea clavata) Stupiste Out dive site, Vis Island, Croatia, Adriatic Sea, Mediterranean

Franco Banfi / Wall covered with Sponges (Verongia / Aplysina cavernicola) and Red gorgonia (Paramuricea clavata) Ischia Island, Italy, Tyrrhenian Sea, Mediterranean