Vibration. See the unseen: Puppy at 1,000 frames per second.

Filed under: Dogs , Funny Animal Pictures You know, if the subject of this slow-motion video was a scantily-clad woman, it would be terrifically sexy. But this is Paw Nation, and we don't traffic in sexy. Cute and/or fascinating animals is our stock in trade, and this is most definitely cute and fascinating.