:|
http://www.videosift.com/video/Mystery-Life-Form-in-NC-SewerIt's
probably just a slime-mold/fungus. There are ones that can crawl around in jungles, then they revert back to a "dry" mode where they look much more like regular mushrooms/fungus. They're just a colony of independant fungus cells, but they're capable of very organized movment like they're a singular animal. Most can only be captured moving under time-lapse photography.
And living in a sewer, I'm guessing it just does not like the lights on the rover very much.
But stil, sheesh.
Someone also suggested it may be a viral marketing campaign for some upcoming game or movie. I don't know, it looks a bit too "real" and organic for that.
Or I guess if you're big on H.P. Lovecraft, it's a Shoggoth.