Figure 4--Trotting trail patterns. Trotting trail patterns appear the same as those of walking patterns, except the stride is longer and straddle may be narrower. (A) Normal trotting trail pattern with direct registry; hind feet imprinting on top of front prints, only hind prints show. (B) Trail of an animal trotting at an increasing speed from bottom to top of figure. At slow trot, the hind print registers posterior to the front print. At a faster trot, hind print registers anterior to the front print. As speed continues to increase, the hind foot registers farther anterior to the front foot. (C) Trail of an animal trotting with the axis of its body at an angle to the direction of travel; in this case the head is to the left. The side trot causes all front feet to register on one side and all hind feet to register on the other side of the line of travel. D = direct registration of hind on front print, F = front print, H = hind print. Direction of travel is from bottom to top of figure.