Systematists formerly combined these two phyla as classes within Phylum Aschelminthes. In this course, we treat now them as two separate phyla. Please note that there are some inconsistencies in your ...

Here’s what you’ll learn when you read this story: One major division of the kingdom Animalia is Cnidarians (animals built around a central point) and bilaterians (animals with bilateral ...

Jellyfish: Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria ...

One major division of the kingdom Animalia is Cnidarians (animals built around a central point) and bilaterians (animals with bilateral symmetry), which includes us humans. A new study found that ...

Jellyfish belong to one of the oldest extant animal phyla, the Cnidaria. The first Cnidaria appear in the fossil record 600 million years ago, preceeding the Cambrian explosion. They are an extremely ...

One major division of the kingdom Animalia is Cnidarians (animals built around a central point) and bilaterians (animals with bilateral symmetry), which includes us humans. A new study found that ...