Monterey Bay Aquarium Research Institute scientists have discovered Bathydevius caudactylus, a new species of glowing sea slug that lives deep in the ocean.

Some species of nudibranch have turned to a life of crime, robbing prey of their only defences: their stings. Nematocysts are the venomous stinging cell organelles produced by cnidarians such as ...

While the opalescent nudibranch is a type of “sea slug,” it is also a brilliantly beautiful and vibrant creature. The colourful species each have flowing projections on their backs that ...

Having collected the sea slugs from reefs off the coast of Okinawa, Japan, researchers observed the creatures mating in tanks. They saw that sea slugs that had recently mated could not do so again for ...

The traveler, unaware that they had stumbled upon a venomous sea dragon, scooped the tiny ... but experts warn their habitats are expanding. The species has been spotted in European waters ...

From vibrant corals to sparkling slugs, our seas are far more tropical than we think! Here are 10 species you might not know live around our shores, and how we’re working to protect them by ensuring ...

new species of nudibranchs are discovered in this area. Peri, our nudibranch specialist, has even had one named after him, Hypselodoris perii. It didn’t take Peri and his posse of sea slug ...

One of the three even lost and regrew its body twice. Two different species of Japanese sea slugs did this regeneration trick. Other creatures can cast off body parts when needed, like when some ...

Washing up on our shores this week, we found small patches of fresh sargassum seaweed, large lightning whelks—which happen to ...

Well, it seemed they’d gone solar-powered. Among the Sacoglossan sea slugs, we see a phenomenon known as kleptoplasty in which some species are able to incorporate the photosynthetic superpowers ...

Related: Blue dragon: The deadly sea slug that steals venom from its prey ... that live in eastern Australia but are a distinct species. Their striking color is an evolutionary mystery, but ...