They’re hydrozoans — a species related to jellyfish, anemones and corals, the park service said. The invertebrate, oval-shaped creatures typically measure 3 to 4 inches long, and have ...

Although the animals look like jellyfish, they're more closely related to the Portuguese man o' war (Physalia physalis). Each creature, which can grow up to 4 inches (10 centimeters) long ...

The blobs are free-floating hydrozoans, which bob on the water’s surface. Unlike jellyfish, which can swim, by-the-wind sailors can’t move on their own. Their numbers may seem ...

However, local authorities were also forced to close two beaches in Tarragona, Catalonia, in July 2024 after Portuguese man o’ war (Physalia physalis) were spotted. While not technically ...

Welcome to Nat Geo Your Shot: National Geographic’s global community for aspiring visual storytellers. Find the community on Instagram @NatGeoYourShot and follow along for hashtag challenges ...

Known by the nickname of by-the-wind sailors, velella velella are hydrozoans — a species related to jellyfish, anemones and corals, according to the U.S. National Park Service. The oval-shaped ...

What are the blue blobs washing up on California beaches? What to know about these strange sea creatures.

32,625 people played the daily Crossword recently. Can you solve it faster than others?32,625 people played the daily Crossword recently. Can you solve it faster than others?

On Saturday, the Repic beach in Puerto Soller was covered by thousands upon thousands of 'velella velella', a jellyfish-like hydrozoa species known in English, among other names, as 'little sail'.