However, male golden-cheeked warblers are frequently observed guarding their mate during construction of nests and egg-laying, but, once incubation begins, the males are observed in the territories of other pairs closely following and attempting to copulate
with another female as she constructs a nest (R.
Parker (1984) verified that there is sperm competition in insects and that the last male to copulate
before oviposition frequently has the advantage of fertilising the eggs.
Females do not need to copulate
with additional virgin males to increase their fertility, and their oviposition pattern is independent of the number and the age of their partners.
Again, the couples were unable to copulate
, despite being together overnight.
The daily recordings were similar to the female choice experiments, and we analyzed whether females preferred to copulate
with either of the two males.
Prior sexual experience increases the likelihood that a male Japanese quail will copulate
with a female taxidermic model.
Precopulatory female choice is reasonably well established because females of many species appear to exert considerable influence over which males they copulate
with (reviewed in Andersson 1994).
This lower copulatory success for unpaired males might reflect female choice; indeed, we have observed females jet from males that attempt to copulate
in the field and laboratory.
Caciques and priests also placed berdaches in temples so that lords and headmen might copulate
with them at religious festivals (106-07).
For instance, chapter 10 informs us "How to Copulate
with a Lady Riding a Horse or Young Ass," another "How to Have a Woman in a Dream," and the most amusing one, "How to Have Intercourse with a Lady in Her Husband's Presence Without His Noticing You.
How (to take a modern example) is one to distinguish a born-again Christian--who believes that God literally loves him--from the famous paranoid psychotic, Judge Daniel Schreber, who believed that God wished to turn Schreber into a woman so that He could copulate
Too rough and unpleasant to copulate
, as applied to a pair of Irish tortoises on rocky ground.