Coitus to tergo is the position sexual commonly known as the dog.Is it same posture in which is placed them Muslim when oran toward the Mecca, i.e., of knees, ducking the head to the floor and lifting them hips.It is the natural position of the animal Kingdom in which the female is placed to mate with the male.
Latinism which means in the back, sex from behind, way dog, to the pecorina, say the Italians. Latinos said coitus more ferarum, as on all fours or two animals, but from behind.