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See searches and references containing CONCEALED OVULATION!CONCEALED OVULATION
Lack of visible changes in ovulating females
considered to have concealed ovulation because there is no outward physiological sign, either to a woman herself or to others, that ovulation, or biological
Concealed_ovulation
Periodic shedding of the uterine lining
differences in the ovulation process. Most female placentals have a uterine lining that builds up when the animal begins ovulation, and later further
Menstruation_(mammal)
Parental expenditure that benefits offspring
Women can only get pregnant while ovulating. Human ovulation is concealed, or not signaled externally. Concealed ovulation decreases paternity certainty because
Parental_investment
Release of egg cells from the ovaries
cycle. In female humans ovulation typically occurs near the midpoint in the menstrual cycle and after the follicular phase. Ovulation is stimulated by an
Ovulation
Females mating while infertile
knowledge of the female's fertility status. This is achieved through concealed ovulation in most animals that exhibit extended female sexuality. A review
Extended_female_sexuality
Topics referred to by the same term
Conceal evidence, in criminology and psychology Concealed carry, carrying a hidden weapon in public Concealed shoes, superstitious charms Concealed ovulation
Conceal
including concealed ovulation. Female catarrhine primates such as hanuman langurs have evolved an extended estrous state with variable ovulation in order
Infanticide_in_primates
Subfamily of mammals
had semi-concealed ovulation, which was inherited by gorillas, and that later evolved in concealed ovulation in humans and advertised ovulation in chimpanzees
Homininae
American evolutionary psychologist
has conducted considerable research pointing to the existence of concealed ovulation in humans. "Steven Gangestad". The University of New Mexico. Retrieved
Steven_Gangestad
Model in evolutionary anthropology
breeding system and persuaded to invest effort—the better. By evolving concealed ovulation and continuous receptivity, females force males into longer periods
Female_cosmetic_coalitions
Ovulation cycle occurring in most female mammalian therians
unlike most other species, have concealed ovulation, a lack of obvious external signs to signal estral receptivity at ovulation (i.e., the ability to become
Estrous_cycle
Penetrative sexual activity for reproduction or sexual pleasure
pregnancy. In humans and bonobos, the female undergoes relatively concealed ovulation so that male and female partners commonly do not know whether she
Sexual_intercourse
Swelling of genital and perineal skin in some mammals as a sign of fertility
absent in humans and vervet monkeys. Females of these species exhibit concealed ovulation. Though heavily investigated, the ultimate function of sexual swellings
Sexual_swelling
Idea that the menstrual cycle synchronizes with those of other women in close proximity
5: 33–44. doi:10.1016/0162-3095(84)90033-5. Turke, P. W. 1988. Concealed ovulation, menstrual synchrony and paternal investment. in E. Filsinger (ed
Menstrual_synchrony
Vocalizations produced by females for mating
offspring from other males. Such hidden fertility has been coined concealed ovulation, and is part of extended female sexuality. In addition to the incitement
Female copulatory vocalizations
Female_copulatory_vocalizations
Hypothesis of female mating behavior
hypothesized that this could be due to the adaptive benefits of concealed ovulation and extended sexuality.[page needed][page needed] However, research
Ovulatory_shift_hypothesis
Bone in the penis
chances of fathering the female's offspring. Human females exhibit concealed ovulation, also known as hidden estrus, meaning it is almost impossible to
Baculum
Desirable qualities in partners
value. Reproductive value is not directly observable in women due to concealed ovulation, so it must be inferred through visible qualities. In fact, physical
Mate_choice_in_humans
Love focused on feelings
in our evolutionary past because of concealed ovulation, where a man can't easily tell when a woman is ovulating, requiring sex throughout the entire
Romance
1997 book by Jared Diamond
engaging and interesting. However, he questioned Diamond's treatment of concealed ovulation, finding it inconclusive. The anthropologist Peter B. Gray and the
Why_Is_Sex_Fun?
Theories on the development of personality
while driving Sex Activity Adult attachment Age disparity Arousal Concealed ovulation Coolidge effect Desire Fantasy Hormonal motivation Incest taboo Westermarck
Personality_development
while driving Sex Activity Adult attachment Age disparity Arousal Concealed ovulation Coolidge effect Desire Fantasy Hormonal motivation Incest taboo Westermarck
Evolutionary approaches to depression
Evolutionary_approaches_to_depression
American scientist, historian, and author (born 1937)
well as by mothers, having sex in private rather than in public, concealed ovulation, female sexual receptivity encompassing most of the menstrual cycle
Jared_Diamond
Social interaction aiming at inflicting harm or unpleasantness
challenge hypothesis and human behavior, or the human nature of concealed ovulation, although some suggest it may apply. Another line of research has
Aggression
Evolution and neuroscience of romantic love
coincided with the emergence of concealed ovulation, where it cannot (in general) be determined when a woman is ovulating, requiring partners to stay together
Biology_of_romantic_love
Branch of psychology
while driving Sex Activity Adult attachment Age disparity Arousal Concealed ovulation Coolidge effect Desire Fantasy Hormonal motivation Incest taboo Westermarck
Evolutionary_psychology
Terrestrial locomotion using two limbs
is supported by a number of modern human traits associated with concealed ovulation (permanently enlarged breasts, lack of sexual swelling) and low sperm
Bipedalism
2000 book by Randy Thornhill and Craig T. Palmer
while driving Sex Activity Adult attachment Age disparity Arousal Concealed ovulation Coolidge effect Desire Fantasy Hormonal motivation Incest taboo Westermarck
A_Natural_History_of_Rape
tough coat surrounding the eggs of some insects and fish. cleavage concealed ovulation conception delamination deuterostome developmental biology diakinesis
Glossary of developmental biology
Glossary_of_developmental_biology
while driving Sex Activity Adult attachment Age disparity Arousal Concealed ovulation Coolidge effect Desire Fantasy Hormonal motivation Incest taboo Westermarck
History of evolutionary psychology
History_of_evolutionary_psychology
Term in evolutionary biology
and the females raise the offspring on their own in their nests. Concealed ovulation Extra-pair copulation Genomic imprinting Intragenomic conflict Parent–offspring
Sexual_conflict
Sociobiological hypothesis
estrus, at which time ovarian follicles are maturing and ovulation can occur. Evidence of ovulation, the phase during which conception is most probable, is
Challenge_hypothesis
American psychologist
while driving Sex Activity Adult attachment Age disparity Arousal Concealed ovulation Coolidge effect Desire Fantasy Hormonal motivation Incest taboo Westermarck
David_P._Barash
5: 33–44. doi:10.1016/0162-3095(84)90033-5. Turke, P. W. 1988. Concealed ovulation, menstrual synchrony and paternal investment. In E. Filsinger (ed
Reproductive_synchrony
Reproductive process
that this could represent a constraint in the evolution of sperm. Concealed ovulation Strategic pluralism Sociobiological theories of rape Polygamy in
Sperm_competition
Periodic shedding of the uterine lining
irregular ovulation is called oligoovulation. The absence of ovulation is called anovulation. Normal menstrual flow can occur without ovulation preceding
Menstruation
Field of study
while driving Sex Activity Adult attachment Age disparity Arousal Concealed ovulation Coolidge effect Desire Fantasy Hormonal motivation Incest taboo Westermarck
Evolutionary educational psychology
Evolutionary_educational_psychology
Polish biologist
Behaviour, 135 (3): 357–368. Pawłowski B. (1999) – Loss of oestrus and concealed ovulation in human evolution: the case against the sexual-selection hypothesis
Bogusław_Pawłowski
Chemical emitted to trigger a response among the same species
which increase in quantity before ovulation. Copulins are used to signal ovulation; however, as human ovulation is concealed it is thought that they may be
Pheromone
Sexual behavior of non-human animals
are no longer nursing. To prevent this, many female primates exhibit ovulation cues among all males, and show situation-dependent receptivity. harassment
Animal_sexual_behaviour
Small domesticated carnivorous mammal
provide the female with increased sexual stimulation, which acts to induce ovulation. After mating, the female cleans her vulva thoroughly. If a male attempts
Cat
Female human's first menstrual cycle
Continuing ovulation typically requires a body fat percentage of at least 22%. Not every girl follows the typical pattern. Some girls ovulate prior to their
Menarche
Species of cephalopod
slowly by way of a small number of large eggs, or a K-selected strategy. Ovulation is irregular and there is minimal energy devotion into the development
Vampire_squid
Suborder of fishes
their mate choice by quickly fleeing from tenacious males when undergoing ovulation succeeding impregnation. This ability affects the paternity of their offspring
Stingray
Human trials of the birth control pill
research since it was found that high doses of progesterone could halt ovulation. While Pincus and Rock's research plans had been laid out, they still
Contraceptive trials in Puerto Rico
Contraceptive_trials_in_Puerto_Rico
Part of the female reproductive tract
from the capillaries through the vaginal epithelium. Before and during ovulation, the mucous glands within the cervix secrete different variations of mucus
Vagina
Pharmaceutical birth control combination
supply. It mainly works by decreasing gonadotropins thereby stopping ovulation. The combination was approved for medical use in the United States in
Ethinylestradiol/etonogestrel
Primary sexual organ of male animals
spines rake the walls of the female's vagina, which is a trigger for ovulation. Lions also have barbed penises. Male felids urinate backwards by curving
Penis
American politician (born 1974)
B contraceptive "kills a baby in the womb"; Plan B actually prevents ovulation and thus prevents pregnancy, instead of terminating a pregnancy. In September
Marjorie_Taylor_Greene
Species group of mammals
May–July. Estrus lasts 5–9 days, with a gestation period lasting 60–68 days. Ovulation is induced through copulation. Spermatogenesis occurs throughout the year
Wildcat
Large cat native to Africa and India
that rake the walls of the vagina during copulation, which may cause ovulation. A lioness may mate with more than one male when she is in heat. Lions
Lion
Species of marsupial
Females only come into oestrus when exposed to male pheromones, with ovulation being induced only by physical contact with the male. Gestation lasts
Gray_short-tailed_opossum
Use of displays by organisms to signal for selective advantage
females have long been thought to conceal their ovulation, but women's behaviour changes around the time of ovulation with increased sexual motivation
Advertising_in_biology
Large feline of the genus Acinonyx
for instance, when gathered around a kill. Other uses include summoning concealed or lost cubs by the mother, or as a greeting or courtship between adults
Cheetah
Species of bird
ISSN 0019-1019. Sockman, Keith W. (2008-03-12). Cresswell, Will (ed.). "Ovulation Order Mediates a Trade-Off between Pre-Hatching and Post-Hatching Viability
Lincoln's_sparrow
Theories about how evolutionary adaptation influences the psychology of rapists
Nicolas, Guéguen (2012). "Risk taking and Women's Menstrual Cycle: Near Ovulation, Women Avoid a Doubtful Man". Letters on Evolutionary Behavioral Science
Sociobiological theories of rape
Sociobiological_theories_of_rape
Proposed reconstructed word list for the Proto-Indo-European language
Cockney "cock-egg"); egg (< ON egg) ōvum "egg" (> ovum, ovary, oval, ovoid, ovulate, etc.) ōión "egg, seed" Past hagə́i "egg" Pol jajo "egg" W wy "egg" *h₂egʷnós
Indo-European_vocabulary
Ability of an organism to keep its body temperature within certain boundaries
day of ovulation), the average basal body temperature in women ranges from 36.45 to 36.7 °C (97.61 to 98.06 °F). Within 24 hours of ovulation, women experience
Thermoregulation
Family of conifers
divided the subfamilies and genera based on the consideration of features of ovulate cone anatomy among extant and fossil members of the family. Cone features
Pinaceae
Species of bird
bird could act as a deterrent to the female bird, leading to delayed ovulation, allowing the male to re-mate. This increases the likelihood of the male
Grey_fantail
Colloquialism for intuitively assessing people's sexual orientation
than straight men, and women have more accurate gaydar when they are ovulating. One study hypothesized that this might be because homosexual people are
Gaydar
Species of lizard
vitellogenic and ovulated. After ovulation, the corpora lutea forms and maintains until oviposition occurs about a month later. Following ovulation, many other
Lampropholis_delicata
Eating disorder
gonadotropin releasing hormone in the central nervous system which prevents ovulation. Anorexia nervosa can also result in pubertal delay or arrest. Both height
Anorexia_nervosa
American politician (born 1944)
conception. "We're against the IUD and pills, too. They don't prevent ovulation and conception, they prevent implantation, which is abortion." According
Bob Marshall (Virginia politician)
Bob_Marshall_(Virginia_politician)
Species of cartilaginous fish
Females bear one litter per year between late February and April, and ovulate a new batch of ova immediately afterward; the litter size is up to seven
Eastern_shovelnose_stingaree
Nutritional gift given in reproduction
no nuptial gift (prey) and 21 males with a nuptial gift (prey). Mating ovulation were recorded and the researchers found that males that gave a nuptial
Nuptial_gift
Menstrual hygiene device, an elastomeric cup worn inside the vagina to catch menses
2024. "Very Heavy Menstrual Flow". The Centre for Menstrual Cycle and Ovulation Research. University of British Columbia. 30 November 2013. Archived from
Menstrual_cup
Species of squirrel native to North America
first estrus is 1.25 years. The presence of a fertile male will induce ovulation in a female going through estrus. Male eastern grays are sexually mature
Eastern_gray_squirrel
higher rates. Flo Health which offers services such as period calendars, ovulation and fertility tracker, menstrual cycle reminders etc. was charged by the
Culture_and_menstruation
Species of fish
Mature females have a single functional ovary and two functional uteri. Ovulation occurs at the same time as gestation, allowing females to bear young every
Smalleye_hammerhead
Japanese anime television series
skills. She always keeps a number of throwing blades and a garrote wire concealed on her body. At some point in the past, a "Fruit of Time" (also known
Mnemosyne_(TV_series)
Method of assisted reproduction
donor use, and these kits generally include a collection pot, a syringe, ovulation tests and pregnancy tests. A vaginal speculum and a soft cup may also
Sperm_donation
spray tan. Those anonymous sources? Anyone with eyes. October 25 9016 Ovulation cycles sway female voting, Tom Hanks concocts neutral Halloween costumes
List of The Colbert Report episodes (2012)
List_of_The_Colbert_Report_episodes_(2012)
Taiwanese actress and singer (1976–2025)
remedies and nutritional supplements, in addition to receiving high-dose ovulation hormone injections. These changes affected both her hormone levels and
Barbie_Hsu
1968 encyclical by Pope Paul VI
given rise to natural family planning organizations such as the Billings Ovulation Method, Couple to Couple League and the Creighton Model FertilityCare
Humanae_vitae
Winners of satirical science award
Indian Clergy". The New York Times. Retrieved 2 January 2026. "Method of concealing partial baldness". Google Patents. 23 December 1975. Retrieved 2 January
List of Ig Nobel Prize winners
List_of_Ig_Nobel_Prize_winners
Species of flowering plant
long and pinkish green to red in colour. This is glaucescent, broadly ovulate, obtuse and ciliolate. The bracteoles are very similar but smaller and
Acrothamnus_colensoi
Differences in the mental functions and behaviors of the sexes
behaviour and preferences relating to mate selection changes throughout the ovulation cycle. A meta-analysis of 58 studies concluded that there was no evidence
Sex_differences_in_psychology
Species of mammal
females caught in the Solomon Sea, two were ovulating and lactating and one was resting (not lactating, ovulating, or pregnant), while one of the two females
Omura's_whale
Species of cartilaginous fish
functional uterus (the left) and produce a single pup (rarely two) per year. Ovulation and mating occur from mid-June to mid-July; fertilized eggs are enclosed
Masked_stingaree
Organism able to swim independently of ocean currents
group-synchronous ovulation, monocyclic spawning and growth between egg batches, (3) intermittent terminal spawning, with group-synchronous ovulation, monocyclic
Micronekton
CONCEALED OVULATION
CONCEALED OVULATION
Girl/Female
Hindu
Conceived in the mind
Boy/Male
Afghan, Arabic, Iranian, Muslim, Parsi, Pashtun
Concealer
Girl/Female
Tamil
Conceived in the mind
Boy/Male
Arabic, Muslim
Concealed; Hidden
Boy/Male
Muslim
Concealed
Girl/Female
Hindu
Concealed
Boy/Male
Hindu, Indian
Heavenly Ghaibi Concealed; Heavenly
Girl/Female
Hindu
Conceived in the mind
Boy/Male
Muslim/Islamic
Forgiving to conceal
Girl/Female
Biblical
Abstruse, concealed, consumed.
Boy/Male
Indian
Concealed
Girl/Female
American, Australian, French, Latin
Concealed
Boy/Male
Native American
Conceited.
Girl/Female
Tamil
Samvritha | ஸஂவà¯à®°à¯€à®¤à®¾
Concealed
Samvritha | ஸஂவà¯à®°à¯€à®¤à®¾
Boy/Male
Indian
Concealed, Veiled
Boy/Male
Muslim
Concealed, Veiled
Biblical
abstruse; concealed; consumed
Girl/Female
Tamil
Conceived in the mind
Girl/Female
Indian, Punjabi, Sikh
Conceived; Formed; Created
Boy/Male
Arabic, Muslim
Veiled; Concealed
CONCEALED OVULATION
CONCEALED OVULATION
Girl/Female
Muslim
Boy/Male
Hindu
Female
Esperanto
Esperanto name VESPERA means "evening star."
Boy/Male
Hindu, Indian, Traditional
Lord of Life
Surname or Lastname
English
English : habitational name from the city in Kent, which is recorded by Bede (c.730) under the names of both Dorubrevi and Hrofæcæstre. The former represents the original British name, composed of the elements duro- ‘fortress’ and brÄ«vÄ â€˜bridge’. The second represents a contracted form of this (possibly affected by folk etymological connection with Old English hrÅf ‘roof’) combined with an explanatory Old English cæster ‘Roman fort’ (from Latin castra ‘military camp’). There is a much smaller place in Northumbria also called Rochester, which seems to have been named in imitation of the more important one, but which is a more than occasional source of the surname. In other cases there may also have been confusion with Wroxeter in Shropshire, recorded in Domesday Book as Rochecestre.
Surname or Lastname
English
English : from the Old English personal name Cotta.Possibly an altered spelling of French Cotte, a metonymic occupational name for a maker of chain mail, from Old French cot(t)e ‘coat of mail’, ‘surcoat’. It may perhaps have been used as a nickname for a hard and unfeeling person, but is unlikely to have been a nickname for a wearer of a coat of mail, since only the richest classes, who already had distinguished family names of their own, could afford such protection. A later meaning of cotte is a long-sleeved garment, worn by both men and women.Alternatively, possibly an altered spelling of French Cot, from a reduced form of Jacot or Nicot, pet forms of Jacques and Nicolas (see Nicholas).Respelling of German Koth or the variant Kott.
Boy/Male
Welsh
Wolf.
Boy/Male
Tamil
No obstacles, Calm
Girl/Female
Australian, French, Greek, Russian
From Demeter
Boy/Male
Australian, Indian
Smart
CONCEALED OVULATION
CONCEALED OVULATION
CONCEALED OVULATION
CONCEALED OVULATION
CONCEALED OVULATION
v. t.
Disturbed; troubled; solicitous; as, to be much concerned for the safety of a friend.
a.
Lying hid; concealed; latent.
v. i.
To hide, withdraw, or be concealed.
adv.
In a concealed manner.
imp. & p. p.
of Conceal
n.
That which is concealed; a secret.
n.
One who conceals.
a.
Having an overweening opinion of one's own powers, attainments; vain; conceited.
a.
Having concealed or rudimentary gills.
a.
Conducted with secrecy; clandestine; concealed.
a.
Hidden; concealed; secret.
a.
Hidden; kept from sight; secreted.
a.
Capable of being concealed.
a.
Concealed; private.
v. i.
To be concealed.
n.
Suppressed or concealed mirth.
a.
Mutually contrived or planned; agreed on; as, concerted schemes, signals.
superl.
Close; concealed; not exposed to notice.
a.
Lying hid; concealed.
imp. & p. p.
of Congeal