Jellyfish are brainless, boneless, eyeless creatures that are 95% water. Despite this simplicity, however, they’ve withstood ...

It belongs to the Apolemia genus, and like all siphonophores, is made up of a colony of organisms called zooids. Siphonophore zooids are either connected to each other by tissues or encased in the one ...

Numerous life forms, in fact. More remarkable than its appearance is what this animal is actually made up of: It is not a single organism but a “roving colony made up of thousands of individual ...

They belong to the Hydrozoa class and are siphonophores. These creatures are actually colonies made up of genetically identical individuals called zooids, each performing specialized functions. The ...

Often mistaken for a jellyfish, the Portuguese Man o’ War is actually a siphonophore—a colonial organism made up of specialized individuals (called zooids) that function together as one.