PHOTOS: New "Green Bomber" Sea Worms Fire Glowing Blobs

PHOTOS: New
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This long, thin, mud-dwelling worm may have few memorable features, as biologist Karen Osborn said. But unassuming sea creatures like this may have evolved into the bomber worms, she said.

Osborne plans to use the related worms to study how bottom dwellers evolve into open-water species.

"What does it take for them to live up there," she asked, "when they have all of these new challenges that they are facing in this very, very different habitat from where their ancestors lived?"
—Photograph courtesy G. W. Rouse
 
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