cnidarians

Since the phylogenetic of the Myxozoa indicates that they are derived from Cnidarians, and all other Cnidarians are aerobic, this is a bit puzzling.

The planet earth have also plenty of the finest chemical masters living under water, like cnidarians, molluscs or sponges.

In fact, this is true for most (all?) Cnidarians -- the Phylum to which Myxozoans belong.

On the other hand, Cnidarians taste their food and reject often small stones and sand grains.

Many cnidarians are able to bud and the buds can vary the phenotype later.

Microorganisms and cnidarians, which can be truly immortal, are even more divergent.

Flatworms have a CNS and a bilobed brain, though cnidarians do not.

All the sedentary groups of animals, like sponges and cnidarians, are unlikely to be primitive in this respect, but they have evolved from mobile ancestors.

The cnidarians are a really interesting part of the animal kingdom.

Many cnidarians have sections of the nerve net with higher concentrations of neurons, but these don't seem to have been associated with any specific functions.

The cnidarians do not, the radially symmetricals do not.

I think maybe only cnidarians have a simpler (or similarly complex) nervous system.

To assume that marine molluscs or cnidarians are "a type of fishes" is a mistake that the majority of languages did not commit.

The idea that there was not one extant parasitic "jellyfish" [1], but thousands of a new branch of parasitic cnidarians was revolucionary at 90's.

Marine colonial cnidarians could theoretically fight also for that title, but the oldest alive Black corals are dated "only" 4000 years old or so.

What really excites modern biologists – and what the article completely fails to discuss (even to the point of claiming "this rule seems to govern all life") – are the numerous and dramatic exceptions to the rule: naked role rats, tardigrades, certain cnidarians ("immortal" jellyfish & hydra) and planarians, various lichens...

Cnidarians and flatworms don't have a CNS and sponges don't have nerve tissue at all.

For instance, Myxozoans, although Cnidarians, were not recognized as such until about two decades ago.

Cnidarians such as sea anemones or jellyfish possess a nerve net, which lacks centralization.