MBARI researchers have discovered a remarkable new species of sea slug that lives in the deep sea. Bathydevius caudactylus swims through the ocean’s midnight zone with a large gelatinous hood and ...

Although the apple-size species, named Bathydevius caudactylus, is classified as a sea slug, the marine animal is unlike any sea slug Monterey Bay Aquarium Research Institute scientists have seen ...

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. When you purchase through links on ...

Across their 10,000 species, sea slugs sport striking colors, external gills, and even the ability to regrow a body from a severed head.

This undated photograph, provided by Monterey Bay Aquarium and Research Institute, shows a mystery mollusk (Bathydevius caudactylus), observed by MBARI's remotely operated vehicle (ROV) Doc Ricketts ...

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Tourists were banned from swimming in the ocean in Spain after two toxic tropical sea slugs were found in the water. The beaches of Guardamar del Segura, in Alicante, were closed this week after two ...

GUARDAMAR DEL SEGURA, Spain - Recent sightings of a tiny blue sea slug with a powerful sting have closed beaches in southeastern Spain. Blue Dragon sea slugs are around an inch long and have unique ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Researchers have ...

More than two decades after spotting a mysterious, gelatinous, bioluminescent creature swimming in the deep sea, California researchers this week announced that it is a new species of sea slug.The ...