sentences:  Adaptations consist of courtship displays, opportunistic mating tactics, and mate binding.The risk of cannibalism becomes greatly reduced when opportunistic mating is practiced.Opportunistic mating has been characterized in numerous orb-weaving spider species, such as "Nephila fenestrata", where the male spider waits until the female is feeding or distracted, and then proceeds with copulation; this greatly reduces the chances of cannibalization.