Be careful, this video could cause spontaneuos vomiting.

via Internet Lurker

This is just the weirdest, most ridiculous, eyeball-popping, vein-tying, intestine-pulling fight scene on the planet.  Watch, and maybe you can learn some of Riki's moves... or maybe you shouldn't 'cause this shit looks dangerous.

via VideoSift

No words can even begin to explain this.

We sincerely apologize.

via BuzzFeed

This video is from a snake cam in a North Carolina sewer. It shows us a gross looking flesh mass that looks like a creature straight out of Alien. The inquiring minds at Deep-Sea News sent the video over to freshwater bryozoa expert and officer of International Bryozoology Association, Dr. Timothy Wood. Here is his take on the extra-terrestrial looking beast:

"Thanks for the video – I had not see it before. No, these are not bryozoans! 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. The contractions you see are the result of a single worm contracting and then stimulating all the others to do the same almost simultaneously, so it looks like a single big muscle contracting. Interesting video."

Here is a slightly less gross video showing the Tubifex worms in better detail.

via Gizmodo