| The female's voice is clear and strong, yet the ruling masters can hear her fear. |
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| Wrasses practice external fertilization in which the female's eggs are released into the water. |
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| The real giveaway is the female's hidden pouch, albeit backward opening, for rearing its young. |
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| However, if a female's cubs are killed, then the female comes into estrus early and has more cubs. |
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| A male produces spermatophores that it transfers to the female's genital pore by means of a specialized arm or tentacle. |
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| The effectiveness of the female's spring camouflage is as uncanny as that of her white plumage in winter. |
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| We observed individual females throughout behavioral estrus and quantified mating order and territorial status for each of a female's consorts. |
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| These infant teeth are used to scrape fatty secretions and other nourishing substances from the female's reproductive organs. |
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| Mature female scales are viviparous and produce 2-3 crawlers per day, totaling 100-150 over the female's lifetime. |
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| Preloved denim skirts are sure to be on top of every female's must-have list. |
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| Females of some species will deposit eggs in other female's nests. |
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| The female's plumage is overall gray-brown and the male appears similar, although he has orange-yellow combs over the eyes and light gray tail feathers. |
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| This female mimic swims between a mating pair just as the dominant male is about to fertilize the female's eggs and fertilizes some of them himself. |
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| In their bizarre form of reproduction, the male is the one who gets pregnant, carrying the female's eggs in a small brood pouch for weeks before giving birth. |
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| It was written in longhand, and without a doubt, by a female's hand. |
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| Mating occurs when the male swims up to the female from behind, swings his gonopodium down and onto the female's egg spot, and delivers sperm. |
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| Eggs are fertilized and extruded, then held on the pleopods of the female's abdomen until larvae are released 12-15 days later. |
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| The rise and fall of estrogen during a female's menstrual cycle may change her perception of pain, according to an experiment on rats. |
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| Eggs are sometimes laid directly into the water, but many species enclose them within a sac attached to the female's body until they hatch. |
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| Through the process of delayed implantation, a female's fertilized egg divides and floats freely in the uterus for six months. |
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| The bills of young birds are light yellow to straw, paler than the female's bill. |
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| The hemipenes are often grooved, hooked, or spined in order to grip the walls of the female's cloaca. |
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| On closer inspection, the male's cloaca is very distended, whilst the female's is nearly invisible. |
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| Upon fertilization and implantation, gestation then occurs within the female's uterus. |
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| The skin of the female's neck and thighs is pinkish gray, while the male's is gray or pink dependent on subspecies. |
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| A courting male may lick a female's tail, rest his head and neck on her body or nudge her with his horns. |
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| During copulation, the male stands on his hind legs with his head held up and his front legs resting on the female's sides. |
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| The length time in which offspring stay with their mother varies, though it can last until the female's next calving. |
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| Rabidosa rabida is a semelparous species that produces approximately 350 offspring during the female's single reproductive event. |
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| Mating is thought to occur in early summer and birthing in late summer, following the female's movement into shallow waters. |
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| In humans, a neurotransmitter called oxytocin activates a female's feelings of affection, trust, and security toward another person. |
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| Thrusting was defined as attempts to introduce the male's gonopodium into the female's genital opening. |
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| Male azyine ladybird beetles have distinctive pairs of hairy bulblike structures, called parameres, that remain outside the female's body, tapping rhythmically against her. |
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| Yet Smuts found particular males and females grooming each other, sleeping snuggled together, and serving as living jungle gyms for the female's infant. |
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| As with all tetrapods, lizards rely on internal fertilisation and copulation involves the male inserting one of his hemipenes into the female's cloaca. |
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| In most cases, the female's eggs float freely in the sea, but some species hold onto them with their spines, affording them a greater degree of protection. |
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