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- Concealed_ovulation abstract "Concealed ovulation or hidden estrus in a species is the lack of any perceptible change in an adult female (for instance, a change in appearance or scent) when she is "in heat" and near ovulation. Some examples of such changes are swelling and redness of the genitalia in baboons and bonobos Pan paniscus, and pheromone release in the feline family. In contrast, the females of humans and a few other species have few external signs of fecundity, making it difficult for the male to consciously deduct, by means of external signs only, whether or not a female is near ovulation.While women can be taught to recognize their own level of fertility (fertility awareness), whether men can detect fertility in women is highly debated. Several small studies have found that fertile women (compared to women in infertile portions of the menstrual cycle, or using hormonal contraception) appear more attractive to men. It has also been suggested that a woman's voice may become more attractive to men during this time. Two small studies of monogamous human couples found that women initiated sex significantly more frequently when fertile, but male-initiated sex occurred at a constant rate, without regard to the woman's phase of menstrual cycle. It may be that a woman's awareness of men's courtship signals increases during her highly fertile phase due to an enhanced olfactory awareness of chemicals specifically found in men's body odor.Analyses of data provided by the post-1998 U.S. Demographic and Health Surveys found no variation in the occurrence of coitus in the menstrual phases (except during menstruation itself). This is contrary to other studies, which have found female sexual desire and extra-pair copulations ("EPC's") to increase during the midfollicular to ovulatory phases (that is, the highly fertile phase). These findings of differences in woman-initiated versus man-initiated sex are likely caused by the woman’s subconscious awareness of her ovulation cycle (because of hormone changes causing her to feel increased sexual desire), contrasting with the man’s inability to detect ovulation because of its being “hidden”.In 2008, researchers announced the discovery in human semen of hormones usually found in ovulating women. They theorized that follicle stimulating hormone, luteinising hormone, and estradiol may encourage ovulation in women exposed to semen. These hormones are not found in the semen of chimpanzees, suggesting this phenomenon may be a human male counter-strategy to concealed ovulation in human females. Other researchers are skeptical that the low levels of hormones found in semen could have any effect on ovulation. One group of authors has theorized that concealed ovulation and menstruation were key factors in the development of symbolic culture in early human society.".
- Concealed_ovulation wikiPageExternalLink haselton_et_al_2007.pdf.
- Concealed_ovulation wikiPageExternalLink is%20ovulation%20concealed.pdf.
- Concealed_ovulation wikiPageID "764891".
- Concealed_ovulation wikiPageRevisionID "603309966".
- Concealed_ovulation hasPhotoCollection Concealed_ovulation.
- Concealed_ovulation subject Category:Evolutionary_psychology.
- Concealed_ovulation subject Category:Menstrual_cycle.
- Concealed_ovulation subject Category:Sexual_selection.
- Concealed_ovulation comment "Concealed ovulation or hidden estrus in a species is the lack of any perceptible change in an adult female (for instance, a change in appearance or scent) when she is "in heat" and near ovulation. Some examples of such changes are swelling and redness of the genitalia in baboons and bonobos Pan paniscus, and pheromone release in the feline family.".
- Concealed_ovulation label "Concealed ovulation".
- Concealed_ovulation label "Ovulación oculta".
- Concealed_ovulation sameAs Ovulación_oculta.
- Concealed_ovulation sameAs m.039k6t.
- Concealed_ovulation sameAs Q5158283.
- Concealed_ovulation sameAs Q5158283.
- Concealed_ovulation wasDerivedFrom Concealed_ovulation?oldid=603309966.
- Concealed_ovulation isPrimaryTopicOf Concealed_ovulation.