Figure 3--Walking trail patterns. (A) Walking trail pattern with direct registry; hind feet imprint on top of front prints, only hind prints show. (B) Trail of an animal walking at an increasing speed from bottom to top of figure. At a slow walk, the hind print registers posterior to the front print. At a faster walk, the hind print registers anterior to the front print. As speed increases, the hind print registers farther anterior to the front print. (C) The walking trail of this animal shows no concern for stealth, and the front and hind prints register almost randomly. D = direct registration of hind on front print, F = front print, H = hind print. Direction of travel is from bottom to top of figure.