Sewer Creatures
This video has made its way to Video Sift and has been inspiring nausea all over the web. Speculations on the nature of this creature run from bryozoans, cnidarians, slime molds, and some mysterious alien creature here to suck out our brains Deep Sea News contacted experts to find out what kind of creature this could be.
They are clumps of annelid worms, almost certainly tubificids (Naididae, probably genus Tubifex). Normally these occur in soil and sediment, especially at the bottom and edges of polluted streams. In the photo they have apparently entered a pipeline somehow, and in the absence of soil they are coiling around each other.
Via [Neatorama]