The Perfect Track

The track going to the right without even examining it any closer is a fox. Likely a Grey fox. The fox is the perfect tracker. Not only does it walk in a straight line, it walks quietly, naturally placing the outside of the foot down first and then moving it's weight. It is such a perfect tracker that it's rear feet step perfectly into the tracks of it's front feet. Looking at the track to the center going slightly left not only do the back feet step in the track of the front feet, but on the return journey it steps perfectly in it's previous tracks both front and back, deviating only for a moment.