Search results
Results From The WOW.Com Content Network
As the snails approach mating, hydraulic pressure builds up in the blood sinus surrounding an organ housing a sharpened dart. The dart is made of calcium carbonate or chitin, and is called a love dart. Each snail manoeuvres to get its genital pore in the best position, close to the other snail's body.
A possible explanation for this is the deeper genital cavity of S. bilineata, which stimulates the males more than when mating with guppy females. [10] Males of some species are able to immobilize females and force copulation. In pigs and boars, males grab females and maneuver the pelvis to lift the vaginal opening and facilitate copulation.
Since there is no mating season in humans, the partners can have penile–vaginal intercourse distributed over the menstrual cycle regardless of the time of ovulation, even when the woman is already pregnant and after the menopause. [10] [11] The principles of safer sex eliminate the reproductive function.
A mating plug, also known as a copulation plug, [1] vaginal plug, [2] sperm plug, or sphragis (Latin, from Ancient Greek: σφραγίς sphragis, "a seal"), is a gelatinous secretion used in the mating of some species. It is deposited by a male into a female genital tract, such as the vagina, and later hardens into a plug or glues the tract ...
In the dynamic world of lion mating, interactions are intense, especially among the females. Over two days, William observed the same pair, anticipating the perfect moment for a close-up shot.
(Ischnura elegans) mating. In biology, mating is the pairing of either opposite-sex or hermaphroditic organisms for the purposes of sexual reproduction. Fertilization is the fusion of two gametes. [1] Copulation is the union of the sex organs of two sexually reproducing animals for insemination and subsequent internal fertilization. [2]
Animal non-reproductive sexual behavior encompasses sexual activities that non-human animals participate in which do not lead to the reproduction of the species. Although procreation continues to be the primary explanation for sexual behavior in animals, recent observations on animal behavior have given alternative reasons for the engagement in sexual activities by animals. [1]
Wild pigs are considered a problem in many parts of South Carolina, as well as the natonal park. Prolific breeders, they destroy important plants by rooting up the forest floor in search of food.