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 ...

Unlike their shelled relatives, which can tuck in and hide from predators and environmental factors, sea slugs are just out there.

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 ...

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 ...

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 ...

Researchers at the California Academy of Sciences kept busy throughout 2025. Along with collaborators from across the globe, ...