Eulagisca gigantea is a polychaete worm, belonging to a diverse group of marine worms found in various ocean environments. Although over 8,000 species have been recorded, experts believe many remain to be discovered.

Recently, a viral Facebook post featuring this strange creature has sparked both fascination and fear. While it may seem otherworldly, this type of creature helps scientists study deep-sea biodiversity. With much of the ocean still unexplored, who knows what other strange creatures will be discovered?