Sponges (Porifera), comb jellies (Ctenophora), the true jellyfish and corals (Cnidaria) and plate animals (Placozoa) together make up the so-called non-bilaterian animals.

The most ancient animal groups (phyla) include the Porifera (sponges), Placozoa, Cnidaria, and Ctenophora (comb jellies). The sponges are extremely simply built, and have no organs. The placozoans ...

The second dish turned out to contain a sponge (phylum: Porifera), an animal that looks like the antithesis of an animal. Sponges sit immobile, anchored to rock or rooted in sediment, ...

Now in a new paper in eLife, Gaiti and his colleagues report such regulatory systems in one of the oldest surviving animal groups, the sponges. “All living animals are descended from a single-celled ...

Sponges (phylum Porifera) are immobile aquatic animals that eat by filtering out food particles from the water around them. During this process, a research team has discovered, the sponges also ...