David Fleetham / Anemone shrimp (Thor amboinensis) on Giant sea anemone (Condylactis gigantea), Bonaire, the Netherlands Antilles, Caribbean.

Franco Banfi / Giant Caribbean sea anemone (Condylactis gigantea) with Spotted cleaner shrimp (Periclimenes yucatanicus) Santa Lucia, Camaguey, Cuba. Caribbean Sea, Atlantic Ocean

Claudio Contreras / Giant anemone (Condylactis gigantea) Cozumel Reefs National Park, Cozumel Island, Caribbean Sea, Mexico, January

Christian Ziegler / Giant Caribbean Anemone (Condylactis gigantea) growing on the shallow bay bottom between mangrove roots, Bastimentos Marine National Park, Bocas del Toro, Panama

Pete Oxford / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Giant Caribbean Anemone (Condylactis gigantea), Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Giant Caribbean Anemone (Condylactis gigantea), Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Giant Caribbean Anemone (Condylactis gigantea) pair with coral on reef, Belize Barrier Reef, Belize

Pete Oxford / Giant Caribbean Anemone (Condylactis gigantea), Belize Barrier Reef, Belize

Luciano Candisani / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Giant Caribbean Anemone (Condylactis gigantea), Santa Barbara Island, Abrolhos Islands, Bahia, Brazil

Luciano Candisani / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Giant Caribbean Anemone (Condylactis gigantea), Santa Barbara Island, Abrolhos Islands, Bahia, Brazil

Luciano Candisani / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Giant Caribbean Anemone (Condylactis gigantea), Santa Barbara Island, Abrolhos Islands, Bahia, Brazil

Claudio Contreras / Spotted cleaner shrimp (Periclimenes yucatanicus) amongst tentacles of Giant anemone (Condylactis gigantea) Puerto Morelos National Park, Caribbean Sea, Mexico, January

Claudio Contreras / Tentacles of the Giant anemone (Condylactis gigantea) Puerto Morelos National Park, Caribbean Sea, Mexico, January

Tim Laman / Giant anemone {Condylactis gigantea} amongst the roots of Red Mangrove trees {Rhizophora mangle} in the Belize Cays, Tunicate Cove, Belize.

Tim Laman / Giant anemone {Condylactis gigantea}, Snapper fish {Lutjanidae}, sponges, tunicates and other invertebrates amongst the roots of Red Mangrove trees {Rhizophora mangle} in the Belize Cays, Tunicate Cov...

Tim Laman / Giant anemone {Condylactis gigantea}, sponges, tunicates and other invertebrate life growing on the roots of Red Mangrove trees {Rhizophora mangle} in the Belize Cays, Tunicate Cove, Belize.

Doug Perrine / Spotted cleaner shrimp {Periclimenes yucatanicus} in Giant sea anemone {Condylactis gigantea} Dominica, Caribbean

Doug Perrine / Giant sea anemone {Condylactis gigantea} Dominica, Caribbean

Norbert Wu / Giant Caribbean Anemone (Condylactis gigantea) underwater, Seychelles

Fred Bavendam / Giant Caribbean Anemone (Condylactis gigantea), Bonaire

Fred Bavendam / Giant Caribbean Anemone (Condylactis gigantea), Bonaire

Doug Perrine / Cleaner shrimp {Periclimenes sp} on Giant anemone {Condylactis gigantea} Bahamas, Caribbean (Non-ex).

Alex Mustard / Giant anemone (Condylactis gigantea) tentacles detail, Grand Cayman, Cayman Islands, Caribbean Sea.

David Hall / Yellowline arrow crab (Stenorhynchus seticornis) living in association with Giant Caribbean sea anemone (Condylactis gigantea), Dominica, Caribbean.

Claudio Contreras / Giant anemone (Condylactis gigantea), Cozumel Island, Caribbean Sea, Mexico.