Contrary to scientific belief Ferrets operate at such a high frequency of activity that they can generate an anti-gravity field around them and maintain a distance of 3~4" from the ground.

Taken during the Critterlympics at FC09. Unfortunately it was just slightly out of focus (tried messing around with sharpening but that was going nowhere) though the blur does accentuate the hyperactivity of ferrets :p

 jesper-f as Rurik