A star-shaped sailboat
This is a classic opossum track where the front, star-shaped track is being cradled by the rear track. The front track looks like the sail of a boat, billowing in the wind. The rear track looks like the hull of the boat. The opposable thumb is the bow of the boat and the three parallel toes of the rear foot make up the stern of the boat. Look for the opposable thumb sticking out to the right-side of the photo. This thumb is part of the rear track. There is no nail on the thumb.