Alien Creature Swims Past International Space Station — Real or Hoax?

This video making the rounds on YouTube has attracted a lot of attention.  It appears that a creature or some anomaly “swims” past what is purported to be the International Space Station.  We say swim only because it is the easiest way to describe the motion.  While the video has gotten plenty of observers, many people believe that instead of being the International Space Station as the video’s description indicates, it is actually a video of a deep sea-emerged craft, and the anomaly that has so many people excited is a real sea creature swimming by, just not in outer space.

What do you think?  Real or hoax?