Rather than hiding from predators, the brightest and most patterned sea slugs are active during the day so their colors shine ...

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 ...

The blue glaucus is the prettiest slug in the sea. The blue glaucus ... delighting park-goers with its beautiful plumes. Mandarin ducks are sexually dimorphic, which means the males and females ...

Blue sea slugs were believed to prey on the Portuguese man-of-war, which contains highly poisonous nematocysts, and uses the nematocysts for defense by incorporating them into the tips of its lateral ...