A scientist collected a marine invertebrate colony from northern Russia, raised it in an aquarium and discovered a new species, a study said. Screengrab from Getty / iStockphoto video In a laboratory ...

In a new study published today in Proceedings of the Royal Society, the scientists show how tiny hydrozoans, polyps smaller than one millimeter and commonly found in dense colonies on the surface of ...

A researcher’s diving holiday lead to a startling discovery of never-before-seen behaviour: crabs using hydrozoans as fishing hooks Every night as the sun goes down, on the coral reefs of the Red Sea ...

The new hydrozoans, Nigriporella magna and N. minima are described from upper Paleozoic rocks of the western United States. These fossils are included in the new family, Nigriporellidae.

Beaches along the west coast have been covered by delicate, blue creatures. The phenomenon isn't quite new, but the large ...