This video from 2010 just had a viral explosion of 50,000 hits in just the past few days after being posted on Reddit, and subsequently featured on io9 and .
In Encounters at the End of the World, a 2007 documentary by Werner Herzog, seals underneath the ice of Antarctica were recorded. Their calls sound like lasers from a sci-fi film, or as one researcher commented, “Pink Flyod or something.” It’s truly out of this world.