It might look like something you'd find in an alien salad, but this bizarre sea slug can actually steal body parts from other organisms and use their powers for itself. "This is an organism that can ...

Beaches in the town of Guardamar del Segura, in southeastern Spain, closed earlier this week after the discovery of two venomous sea slugs in the water, local authorities announced. Due to the ...

Blue dragon sea slugs have been seen in recent weeks washing up on gulf coast Texas beaches but the small venomous creatures are no strangers to Florida. With their hypnotic and iridescent blue color, ...

Small but mighty and venomous creatures have caused the closure of tourist beaches for a second time in southeastern Spain this week after they were discovered in the water, local authorities ...

In 2000, scientists spotted a bioluminescent mollusk in the deep sea. The animal was so unique that they had no idea what it was until they did genetic testing. It turned out to be a new species of ...

They had to sea it to believe it. Researchers near California waters found an elusive, deep sea “mystery” mollusk that operates as a Venus fly trap far below depth. The creature is also spectacularly ...

It could be the plot of a summer sci-fi blockbuster: A creature feeds on its prey and inherits its "superpower." Only this is real. Subscribe to our newsletter for the latest sci-tech news updates. A ...

Kleptoplasty. It sounds cool. It is cool. Acquired phototrophy is a process where organisms - usually aquatic protists or metazoans - acquire and retain photosynthetic endosymbionts or their ...

At first glance, the lettuce sea slug (Elysia crispata) looks like a leafy underwater alien. But what’s hiding inside its frilly green body is far more fascinating than its salad-like appearance.

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