Although our curators do not spend much time in the Cub Nursery, going in only to feed the cubs and clean up after them, they are able to record what happens via a video/audio feed to the office.  One night last week, they were able to edit about 12 hours of overnight footage into this short video.  It is revealing of the play behavior that goes on throughout the night when no humans are around.  There are a couple of short rests or naps in the midst of the playing, but of course longer sleep times are not a part of this footage.  Click on the link and enjoy watching how the two little cubs spend their time!