Sue Daly / Feather duster fan worm (Sabella spallanzanii) with tentacles moving in the current, Sark, British Channel Islands, UK, August.

Claudio Contreras / Social feather duster worm (Bispira brunnea) Cancun national Park, Caribbean Sea, Mexico, July

Michael & Patricia Fogden / White-necked Jacobin (Florisuga mellivora) hummingbird male feeding on nectar of Fairy Duster (Calliandra sp) flower in cloud forest, Tandayapa Valley, western slope of Andes, Ecuador

Wild Wonders of Europe / Lundgren / Spiral tube worm (Sabella / Spirographis spallanzani) Faial, Azores, Portugal, July 2009

Wild Wonders of Europe / Lundgren / Spiral tube worm (Sabella / Spirographis spallanzani) Faial, Azores, Portugal, June 2009

Wild Wonders of Europe / Lundgren / Spiral tube worm (Sabella / Spirographis spallanzani) Faial, Azores, Portugal, June 2009

Wild Wonders of Europe / Zankl / European fan worms (Sabella / Spirographis spallanzani) Malta, Mediteranean, May 2009

Wild Wonders of Europe / Zankl / Close-up of European fan worm (Sabella / Spirographis spallanzani) Malta, Mediteranean, May 2009

Wild Wonders of Europe / Zankl / European fan worms (Sabella / Spirographis spallanzani) Malta, Mediteranean, May 2009

Juergen Freund / Giant fanworm / feather duster {Spirobranchus spallanzani} on coral reef, Mediterranean

Chris Newbert / Feather Duster Worm (Sabellastarte sp) in the shape of a heart, 40 feet deep, Solomon Islands

Georgette Douwma / Kaleidoscopic image of Featherduster worm. Indonesia.