The vagina of the female coyote contracts during copulation, forming a copulatory tie. Copulation consists of a brief copulatory jump. It is hypothesized that the cloaca everts to serve as a copulatory organ. Males also have a prominent copulatory bursa posteriorly. The cerebral ganglion might have an inhibitory effect on copulatory reflexes. This process, known as copulatory courtship, is prevalent in many insect species. This phallus is associated with prolonged matings enforced by a copulatory tie. Males have a small copulatory bursa at the posterior. The benefits include both pre and post copulatory mating. The structure of the copulatory apparatus varies significantly between males of different species. The animal has no copulatory organ. This competition causes selection for competitive traits which can be pre or post copulatory. The copulatory tie lasts roughly four minutes. This action allows for initial and subsequent copulatory bouts. In most deer species, a copulatory jump also occurs.