An unusual sea slug with a large hood, a tail with fingerlike projections and glowing bioluminescence has been found living off the West Coast of the US.

R esearchers at the Monterey Bay Aquarium Research Institute (MBARI) have unveiled a new species of sea slug, Bathydevius caudactylus, that is the first known nudibranch to inhabi

A "remarkable" new sea slug nicknamed the “mystery mollusk” has been discovered swimming deep in the ocean's "midnight" zone. The species has "unique" adaptations for life in the pitch-black depths including a large gelatinous hood to trap prey,

According to Bruce Robison, a senior scientist at the Monterey Bay Aquarium Research Institute, it’s “the most comprehensive description of a deep-sea animal ever made.” The team published its description in Deep-Sea Research Part I and comes on the heels of over 150 additional sightings of the creature by MBARI ROVs.

A “remarkable” new sea slug nicknamed the “mystery mollusc” has been discovered swimming deep in the ocean’s “midnight” zone. The species has “unique” adaptations for life in the pitch black depths including a large gelatinous hood to trap prey,