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become estrous, mentally and physically receptive to [[Canine tying|copulation]]. Because the [[ovum|ova]] survive and can be fertilized for a week after...

Pair bonding can occur 2–3 months before actual [[Copulation (zoology)|copulation]] takes place.<ref>{{cite journal|last1=Bekoff|first1=Marc|first2=Judy|last2=Diamond...

The male's [[bulbus glandis]] enlarges during [[Copulation (zoology)|copulation]],<ref name="mammals-of-na"/> forming a [[copulatory tie]] which may last...

when they become aroused and continue throughout [[copulation (zoology)|copulation]].<ref> {{cite web |url=http://www.llamapaedia.com/behavior/sounds.html...

a limited number of observations suggest that [[copulation (zoology)|copulation]], lasting nearly four minutes on an average, begins with the male smelling...

season]] male-female interactions are limited to [[copulation (zoology)|copulation]]. In [[Ohio]], adult males and females associate with each other throughout...

when a female approaches his nest. Following [[Copulation (zoology)|copulation]], the male and female continue to build the nest. Nests may be in any...

the female usually following the male. Before [[copulation (zoology)|copulation]], one bird bows deeply to its mate, its bill pointed close to the ground...

established, pairs stay together to breed for life, but extra-pair [[Mating|copulation]] is common, making this species [[gene]]tically [[Animal sexual...

displayed by the male European polecat. During [[copulation (zoology)|copulation]], the male grasps the female by the nape of the neck, with the [[copulatory...

First, a decreased value is placed on one single [[copulation (zoology)|copulation]]. Moreover, the risk of [[infanticide]] is decreased due to the uncertainty...

Egg laying occurs no sooner than 18 days after [[copulation (zoology)|copulation]], with March being the height of the laying season.{{r|Anderson1972|p=73...

[[pelvic spur]]s on both sides of the vent. During [[Copulation (zoology)|copulation]], males use these spurs for gripping females.<ref>{{cite journal |author=Rizzo...

several attempts at mounting before the actual [[copulation (zoology)|copulation]]. The female shifts her tail to one side, while the male clasps her sides...

|s2cid=86267022 |doi-access=free}}</ref> After [[copulation (zoology) |copulation]], the male rejoins his group and restarts the first phase of the rut...

associated with feeding but is also uttered during [[copulation (zoology)|copulation]]. The "chitter" is used in activities that involve interaction between...

display, a female may allow the male to mount; [[copulation (zoology)|copulation]] can last as long as 5 minutes.<ref name="Feldhammer et al., 1988"/>...

===Reproduction and development=== [[Estrus]] and [[copulation (zoology)|copulation]] occur at the same time as in the pine marten.<ref name="s902"/> Copulation...

[[estrus]] was observed on 22–26 April, with [[animal sexual behavior|copulation]] lasting from 15 minutes to an hour. The average litter consists of three...

lek, it is mainly the alpha-cock who engages in [[Copulation (zoology)|copulation]] with the hens. In this phase western capercaillies are most sensitive...