PUG MARKS
A walking tiger in normal gait places the rear foot on the top of the impression made of the front foot. The positioning however ever changes with the speed of walking, but rear pugmarks always remain undisturbed because the rear pug either superimposes the front pugmark or overshoots it. This is one reason for choosing pugmarks made by the rear pug. Rear pugs are invariably smaller than front pugs. Of the superimposed pugs, the inner outline is of the rear pugs. Another reason is that only the rear pugmark is different in males and females. The distinction is one of size. A �box� drawn around the pugmark of the male is almost a square, on other hand in case of female is clear rectangular.