These stringy clumps of mucus, basically the equivalent of sea sponge snot, were then expelled into the water column by a series of contractions and relaxations across the sponges’ surface. These highways became junctions at specific elevated sections on the sponges' surface with the mucus forming stringy clumps.

The video also shows that mucus is continually moving across the surface of the sea sponge, creating “mucus highways” that contain waste material.

No wonder, many people still do not know because this animal does not move at all, like a rock. In the video, the sponge can be seen expelling particulate matter through its inlet pores. It’s an animal of sea Have you ever seen a sea sponge What do you think about them, plants, animal or stones The researchers say that actually sea sponge is one of the marine animals. Their large filter capacity makes them important links in marine food webs as they are able to access nutrient sources that are unavailable to the majority of marine fauna and channel this energy to higher trophic levels. Researchers recorded a time-lapse video of the stove-pipe sponge ( Aplysina archeri). Sponges move large quantities of seawater through their body while efficiently removing dissolved and particulate nutrients. These sponges move mucus, containing waste particles, against their internal flow of water out of their ostia and into the surrounding water column by a period of surface contractions – or “sneezing”. While marine experts have known about this behavior for a long time, new research published in the journal Current Biology has revealed a new waste disposal system.

Sea sponges moving