Recent molecular phylogenetic analysis has shown that the marine animals known as peanut worms are not a separate phylum, but are definitely part of the family of annelids, also known as segmented ...

A newly discovered species of deep sea worm releases tiny balloon-like structures that glow in the dark to distract predators, scientists have found. Researchers using undersea robots pulled up seven ...

During the holiday season, even the ocean gets in the spirit! The Christmas tree worm (Spirobranchus giganteus) is a type of polychaete, a group of segmented worms mostly found in the ocean. It lives ...