Deep-sea researchers have discovered a strange glowing sea slug off the coast of California that lives in the water column — unlike most other species of its kind.

Most sea slugs use their raspy tongues to feed on prey that is attached to the seafloor. Instead, Bathydevius caudactylus works a bit more like a Venus fly trap. It uses a cavernous hood to trap crustaceans. Some other unrelated deep-sea species–including some jellyfish, tunicates, and anemones–use this feeding strategy.