However, not all hydrozoans are considered jellyfish. For example, the famous Portuguese man o’ war is part of the class Hydrozoa but is known as a siphonophore. They are made up of groups of small ...

Jellyfish like the dreaded Portuguese man-of-war are also related to corals, but they’re part of a different subgroup, the siphonophores, which practice an unusual form of collective living.

Not only is it not a jellyfish, it's not even an "it," but a "they." The Portuguese man-of-war is a siphonophore, an animal made up of a colony of organisms working together. The man-of-war ...

Sea Trust Wales said the species of siphonophore - a group of animals related to jellyfish - has a painful sting and in rare cases can be fatal. The tentacles can be up to 10m (32ft) in length but ...

The creatures, which resemble jellyfish but are a species of siphonophore, cause painful stings if people come in contact with their tentacles. They can be fatal for those who may suffer a severe ...

The species superficially resembles a jellyfish, but is actually a siphonophore, an animal made up of a colony of organisms working together. Universiti Malaysia Terengganu (UMT) Faculty of ...