study of a lion track

Early morning August 2005 near Nossob camp in the Kgalagadi Frontier Park, I came across what was clearly a lion track. Yet my guide book on the subject only showed the lower part of the photo as being a lion track : the pad of the paw. So what was the other part ? It turns out that when lions charge their claws (normally retracted) are extended.
This track therefore was evidence that in the quietness of the previous night all was not so calm.