A new study of the blue button (Porpita porpita), a small and elusive sea creature which lives on the surface of the ocean, ...

Scientists still have much left to learn about the creatures, even as hundreds of thousands of them wash ashore.

The jellyfish-type creatures travel the ocean via clear "sails." ...

Blue, jellyfish-like creatures called velella velella are washing ashore California beaches. Here's what to know.

The jellyfish-like creatures can pose a danger to dogs.

They are iridescent, bright blue and jellylike, with stinging tentacles that dangle from their flat, oval-shaped bodies. Just 3 to 4 inches long, these alien-looking creatures use a short, clear flap ...

This week’s beachcombing brought an unforgettable sight along our Texas shoreline: blue dragons. While walking a short stretch of beach, I counted nearly 20 of these tiny, electric-blue sea slugs ...

“These mysterious and beautiful creatures rely on warm ocean currents to ‘sail’ them around the world,” The Wildlife Trusts says. Enormous volumes of these mysterious blue colonial organisms, like ...