Some species never grow up; they remain branching colonies of polyps. And one hydrozoan, the immortal jellyfish (Turritopsis dohrnii), seen here in a water drop, has a life cycle that skips death ...

The destruction of bulkheads and docks and waterfront structures caused a significant loss of habitat for jellyfish polyps, the stage where they grow and reproduce while attached to hard surfaces ...

It will then start to mature and grow. Larvae mature into polyps, which will then bud off and mature into young jellyfish.' An adult jellyfish is known as a medusa. Jellyfish belong to a group called ...

all provides a perfect infrastructure for the juvenile form of the jellyfish, a polyp, to attach and grow, said Steven Haddock, a senior scientist at the Monterey Bay Aquarium Research Institute.

These are typically smaller than scyphozoan jellyfish. The polyp stage of their lives is usually more conspicuous than the small adult jellies. However, not all hydrozoans are considered jellyfish.

Not only is it not a jellyfish, it's not even an "it," but ... The man-of-war comprises four separate polyps. It gets its name from the uppermost polyp, a gas-filled bladder, or pneumatophore ...

Spain’s beaches, a major tourist attraction, are facing an unexpected threat: jellyfish. As rising temperatures and other ...

In Wolf Lake, Folino-Rorem found the freshwater jellyfish in the polyp stage, which is its primary stage and present throughout the year. The polyp stage is a precursor to the medusa stage ...

Jellies: Go with the Flow brings a new, custom-built, 1,700-square-foot permanent expansion to the Newport Aquarium. The ...

The integral jellyfish is a new hydrozoan species found ... Sugimoto was also able to successfully raise the species from the polyp stage, an early phase of development, marking the first time ...