News > Glowing mystery sea slug that detaches part of its body stuns scientists

Glowing mystery sea slug that detaches part of its body stuns scientists

The "sea slug" is a nudibranch that glows, swims, and has an apple-sized body with a paddle-like tail and a large gelatinous hood. It is Bathydevius caudactylus, the first known nudibranch of its kind. Nudibranchs are soft-bodied marine gastropod molluscs. Researchers at the Monterey Bay Aquarium Research Institute made the discovery. The sea slug is the first to be found in the deep ocean, more than 7,220 feet below the surface of the Pacific Ocean.