21. This is an example of a copulatory mechanism where the female actively hinders a successful mating. 22. The bootlace hagfish is a hermaphrodite, and both genders do not have a copulatory organ. 23. There are two types of slope posture, a pre-copulatory one and an ordinary one. 24. Prenatal exposure to morphine increases copulatory behavior in male rats while decreases estrous behavior in female rats. 25. Accordingly, copulatory calls serve more than a single aggressive behavior towards her offspring from other males. 26. These spines are used during copulation to help overcome female resistance and penetrate into their copulatory duct. 27. Males and females closer in age are more likely to form pre-copulatory and copulatory pairs. 28. Males and females closer in age are more likely to form pre-copulatory and copulatory pairs. 29. Fossa mating includes a copulatory tie, which may be enforced by the male's spiny penis. 30. Males also have copulatory bursas, used to hold on to the female during copulation and cement glands.
