A newly identified species of sea slug, so small that it is barely larger than a sesame seed, has been discovered in the ...

On a routine recreational dive off Keelung, Taiwan, a diver noticed something barely visible on the substrate: a soft-bodied ...

Animals that resemble plants are not uncommon in the wild. Many creatures use this mimicry for camouflage purposes. One sea slug, however, doesn’t just look like a plant, it actually functions like ...

Learn how a recreational dive, a Facebook message, and years of DNA analysis led researchers to identify a sesame-seed-sized ...

The unusual creature measures less than three millimetres in length, and is see-through with black-and-yellow spots. Find out ...

These are some of the ingredients that come together to make Thecacera sesama, a newly identified species of sea slug, ...

When we think of slugs, we often picture slimy brown garden creatures. Under the sea, however, you can find slugs so colorful and unique they seem to have been transplanted from another planet ...

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

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Hypnotizing footage reveals a never-before-seen swimming sea slug that eats using a large jelly-like hood and glows to defend itself from predators. Living at depths of between 3,300 and 13,100 feet, ...

Eastern Emerald Elysia rely on the algae Vaucheria litorea to complete its development. The sea slug retains chloroplasts from the algae in the cells of its digestive tract. Here, the chloroplasts ...