Brush-tailed Possum, Joey still scared of light, lived in darkness since birth.

-At the very beginning, the female enters the frame from the left and the Joey runs to piggyback on her.
-37 secs, she comes again and the Joey runs from behind to her back.
-1:14, a male comes in and stays there till he smells the female nearby, raises on alert and decides to leave.
-3 min, the female and Joey come for a brief period of time.
The total time in front of the camera is around 25 min, spread over a 4 hrs span.
Most shots have been accelerated to keep them in the context of the action.