Phylum Pogonophora, commonly referred to as the beard worms, is a group of tubular, worm-like marine animals found in deep sea environments. This unique group of organisms is characterized by a specialized feeding organ called a tentacle crown that resembles a bushy beard. Synonyms used for Phylum Pogonophora include the following: tube worms, bushy tube worms, and pogonphorans. While they are not commonly known by the general public, these creatures play an important role in deep-sea ecosystems as they host symbiotic bacteria that help them convert chemosynthetic compounds into food. Despite their somewhat scary appearance, beard worms are fascinating creatures that offer unique insights into the diversity of marine life.