What should we make of the fact that the neuroid cells were in the sponges’ digestive system? Arendt and Musser say there is growing evidence that some neurons evolved from digestive cells.

Large, circular digestive structures called choanocyte ... level of control for an animal without a nervous system. The finding suggests that sponges are using bits and bobs of communications ...

possess a complete digestive system. Sponges are a bit of a unique case as a loose conglomeration of cells in a body full of pores and channels. None of this really resembles organs or a digestive ...

A study published on 4 November in Science now reveals that sponges use an intricate cell communication system to regulate ... clustered around the sponges’ digestive chambers.

After lengthy analysis, researchers in laboratories in Europe, the United States and China found cellular activity in the sponges' digestive system similar to that in action around human synapses ...

But if sponges don't have brains, what is the role of these? Scientists imaged the sponge digestive chamber to find out. As you read these lines the highly sophisticated biological 'machine' that ...

This meant digestive enzymes could be secreted ... nerve cells are present in the genome of sponges. While sponges have no nervous system, they do have basic sensory abilities, with some larvae ...

Sponges are the oldest known animal–microbe symbiosis and are found abundantly across the globe, from the canals of Amsterdam to kilometer-deep canyons on the ocean floor. They play an essential ...

Sponges are filter feeders with no sophisticated digestive system, a consumption method that absorbs less oxygen—and may have made the squishy creatures central to early life on Earth.

They are invertebrates, which means they do not have backbones. Sea sponges don't have a brain, a digestive system, or even blood! They are directly affected by the water they filter in and out of ...

Synaptic genes were active in a few of these types, which were clustered around the sponges’ digestive chambers ... so that they can pause the water-flow system and clear out any debris or ...