As an ethologist, Morris further proposed that breasts, a secondary sex characteristic located on the woman's chest, encouraged face-to-face sexual intercourse that led to the establishment of an emotional bond between man and woman ; social progress from an essentially procreational function of human biology.

It is also asserted that scientific studies focus too much on the search for a biological explanation for sexual orientation, and not enough on the combined effects of both biology and psychology.

The conventional view in biology is that there are two major drives in love: sexual attraction and attachment.

In biology and specifically, genetics, the term hybrid has several meanings, all referring to the offspring of sexual reproduction.

Biology and sexual orientation is the subject of research into the role of biology in the development of human sexual orientation.

She participates actively in the field of sexology and has written extensively on the fields of biology of gender, sexual identity, gender identity, and gender roles.

Butler's central thesis argues that gender identity does not oppose sexual biology but, on the contrary, performs the possibility of something otherwise than male or female.

Although biology usually determines genetically whether a human being is male or female, ( though intersex people are born ), the state of being neither a man or a woman is sometimes considered in relation to the individual's gender role in society, gender identity, sexual orientation or any other characteristic.

* In reproductive biology, heterogamy is the alternation of differently organized generations, applied to the alternation between parthenogenetic and a sexual generation.

In biology, sexuality describes the reproductive mechanism as well as the basic biological drive that exists in all sexually reproducing species and can encompass sexual intercourse and sexual contact in all its forms.

This is an alphabetical index of topics related to sexology, human sexuality and marriage customs, and related topics such as human sexual anatomy, reproductive biology, andrology, gynaecology, obstetrics and, where relevant, anthropology.

– happy finish – hard-on – hardcore pornography – harem – harem effect – harm reduction – harmatophilia – Harmful to Minors – harnesses – harpaxophilia – Hart's Line – health benefits of sex – heavy petting – hebephilia – hedonism – Hegar's sign – hematocolpos – hematometra – hemophilia – hen party – henogamy – Hentai – Hepatitis – Hepatitis A – Hepatitis B – Hepatitis C – Hepatitis D – Hepatitis E – Hepatitis G – Gilbert Herdt – hermaphrodite – hermaphroditism – herpes – Herpes simplex type II – Herpes simplex virus – Preben Hertoft – hetaera – hetaerae – heterocentrism – heteroflexible – heteronormativity – heterophilia – heterosexual – heterosexualism – heterosexuality – heterosexual-homosexual continuum – hierodule – hierogamy – hierophilia – Hieros Gamos – hieros gamos – high-class prostitute – high-class prostitution – hijra – Hindu marriage customs – Hindu view of marriage – Hindu views of homosexuality – hippocampus – Hippocrates – Magnus Hirschfeld – hirsuties papillaris genitalis – hirsuties papillaris penis – hirsuties papillaris vulvae – hirsutism – Hispanic marriage customs – histocompatibility – history of sex – The History of Sexuality – hitch a ride by flaunting-HIV – HIV test – HIV + – HIV-positive – HIV / AIDS – HIV / AIDS in Africa – HIV / AIDS in Asia – HIV / AIDS in Central Asia – HIV / AIDS in the People's Republic of China – HIV / AIDS in the Republic of China – HIV / AIDS in Eastern Europe – HIV / AIDS in Eastern Europe and Central Asia – HIV / AIDS in India – HIV / AIDS in Latin America – HIV / AIDS in Oceania – HIV / AIDS in Russia – HIV / AIDS in Taiwan – HIV / AIDS in the Caribbean – HIV / AIDS in the Russian Federation – HIV / AIDS in the United States – HIV / AIDS in Western Europe – hodophilia – hogging – hogtie bondage – holding hands – Xaviera Hollander – homicidophilia – homilophilia – homoeroticism – homoerotophobia – homogamy – homologue – homology ( biology ) – homomasculinity – homophile – homophobia – homosexology – homosexual – homosexual transsexual – homosexualism – homosexuality – homosexuality and Christianity – homosexuality in Africa – homosexuality in China – homosexuality in India – homosexuality in Japan – homosexuality in Latin America – homosocial – homosociality – honeymoon – honor killing – hood piercing – hooker – hookup – hormonal cyclicity – hormone – hormone blockers – hormone replacement therapy – hormone therapy – hormonodynamics – hot flashes – hot wax – hotwife – HRT – human branding – human chorionic gonadotropin – human female sexuality – Human Immunodeficiency Virus – human male sexuality – human papillomavirus – human pony – human seminal plasma hypersensitivity – human sexual behavior – Human Sexual Inadequacy – Human Sexual Response – human sexual response cycle – human sexuality – humbler ( BDSM ) – humiliation – Huntington's chorea – hustler – hybridization – hybristophilia – hydatidiform mole – hydrocele – hydrosalpinx – hygiene – hygrophilia – hymen – hymenal remnants – hymenorrhaphy – hymenotomy – hyperactivation – hypergyny – hypermasculinity – hypermasculinity theory of male homosexuality – hyperorgasmia – hyperparathyroidism – hyperphilia – hypersexuality – hyphephilia – hypnosis – hypoandrogenic state – hypoandrogenism – hypogonadism – hypophilia – hypopituitarism – hypospadias – hypothalamic-pituitary-gonadal axis – hypothalamus – hypothyroidism – hypoxyphilia – hysterectomy – hysteria – hysterical pregnancy – hysterotomy –

r-selection – race-oriented pornography – radical feminism – ranch ( brothel ) – rape – rape during wartime – rape fantasy – rape pornography – rape rack – raphe – rapism – raptophilia – reach around – reach-around – reacharound – reading the banns – receptive partner – recovery from sexual assault – rectal examination – rectal foreign body – rectal foreign object – rectal prolapse – rectal sex – recto-vaginal fistula – rectocele – rectovaginal examination – rectovaginal fistula – rectum – red shower – red-light district – reductionism – reflex anal dilatation – refractory period – refusal skills – registered partnership – regulated prostitution – Wilhelm Reich – relationship – relationship counseling – relationship violence – relics – religion and homosexuality – religion and sexuality – religious aspects of marriage – religious prostitution – religious views on masturbation – religious views on sex – rent boy – reparative therapy – reproduction – reproductive biology – reproductive health – reproductive organs – reproductive rights – reproductive strategy – reproductive system – reproductive technology – reproductive tract – reproductive tract obstruction – resolution phase – retained menstruation – retarded ejaculation – rete testis – retifism – retrocopulation – retroejaculation – retrograde ejaculation – retroverted uterus – reverse cowgirl – reverse Prince Albert piercing – reverse prostitution sting operation – reversible hyposomatotropic dwarfism – RH – Rh factor – rhabdophilia – Rhythm Method – ridged band – rim-job – rimming – ring gag – ringbearer – ringing – ritual cleanliness – ritual purification – ritual sex – ritualistic sex act – ritualistic sexual act – ritualistic sexual behavior – roasting ( sexual act ) – robot fetishism – robotism – Roland Loomis – role-playing – Roman marriage – Roman showers – romance – romance novel – romance scam – romantic friendship – romantic love – romantic marriage – root of penis – rough sex – rough trade – round ligament of uterus – Royal College of Obstetricians and Gynaecologists – RU-486 – rubber – rubber clothing – rubber fetishism – rubberism – ruby shower-ruined orgasm –

Other funding went into endocrinology departments in American universities, human heredity, mammalian biology, human physiology and anatomy, psychology, and the pioneering studies of human sexual behavior by Dr. Alfred Kinsey.

John William Money ( 8 July 1921 – 7 July 2006 ) was a psychologist, sexologist and author, specializing in research into sexual identity and biology of gender.

In addition to studies characterizing their venom and its clinical manifestation, widow spiders are broadly used in research on spider silk, and on sexual biology including sexual cannibalism.

In biology and psychology, the Coolidge effect is a phenomenon — seen in nearly every mammalian species in which it has been tested — whereby males ( and to a lesser extent females ) exhibit renewed sexual interest if introduced to new receptive sexual partners, even after refusing sex from prior but still available sexual partners.

Endocrinology ( from Greek, endo, " within ";, krīnō, " to separate "; and ,-logia ) is a branch of biology and medicine dealing with the endocrine system, its diseases, and its specific secretions called hormones, the integration of developmental events such as proliferation, growth, and differentiation ( including histogenesis and organogenesis ) and the coordination of metabolism, respiration, excretion, movement, reproduction, and sensory perception depend on chemical cues, substances synthesized and secreted by specialized cells.

* male, in biology, the half of a reproduction system that produces sperm cells

* Evolutionary biology: Development of both animals and plants is considered in the articles on evolution, population genetics, heredity, variation, Mendelism, reproduction.

Although reproduction methods that are based on the use of two parents are more " biology inspired ", some research suggests that more than two " parents " generate higher quality chromosomes.

In biology, offspring is the product of reproduction, of a new organism produced by one or more parents.

* Resource ( biology ), substances or objects required by a biological organism for normal maintenance, growth, and reproduction

Concerning a public health and racial policy in general, Huxley wrote that "... unless societies invent and enforce adequate measures for regulating human reproduction, for controlling the quantity of population, and at least preventing the deterioration of quality of racial stock, they are doomed to decay ..." and remarked how biology should be the chief tool for rendering social politics scientific.

SCBI is a non-public facility devoted to training wildlife professionals in conservation biology and to propagating rare species through natural means and assisted reproduction.

* Center for Species Survival: The CSS scientists research issues in reproductive physiology, endocrinology, cryobiology, embryo biology, animal behavior, wildlife toxicology and assisted reproduction.

It was the discovery of the APC / C ( and SCF ) and the key role that they have in eukaryotic cell reproduction that established once and for all the importance of ubiquitin-mediated proteolysis in eukaryotic cell biology.

Indeed, in modern biology, the term fitness mostly refers to reproductive success, and is not explicit about the specific ways in which organisms can be " fit " as in " having phenotypic characteristics which enhance survival and reproduction " ( which was the meaning that Spencer had in mind ).

Currently, in biology, the term adaptation has a clear and concise meaning: a biological adaptation is an anatomic structure, a physiological process or a behavior's trait of an organism that has been selected by the natural evolution in such a way that this characteristic increase the probability of reproduction of an organism.

While the sexual formation of the digenean eggs and asexual reproduction in the first larval stage ( miracidium ) is widely reported, the developmental biology of the asexual stages remains a problem.

Well-preserved fossils of this species illustrate many aspects of their biology, such as their diet and reproduction.

Bush generally was opposed to biology especially the science of human reproduction and reproductive health ; and science with global warming.

* In evolutionary biology, to illustrate that sexual reproduction and the resulting genetic recombination may be just enough to allow individuals of a certain species to adapt to changes in their environment-see Red Queen's Hypothesis.

The center's research facilities are designed to enhance the health, reproduction, and reintroduction efforts of endangered species and to collect information about the general biology of raptors.

This group-forming in Humans is the result of biology: due to the size of our brains, children are dependent on their parents for much longer than most animals ; the result of this is that the biological couplings necessary for reproduction linger so that the parents can ensure the survival of the offspring.

In biology, naturalisation is any process by which a non-native organism spreads into the wild and its reproduction is sufficient to maintain its population.

In modern biology ( e. g. Haeckel and Fritz Müller ), palingenesis has been used for the exact reproduction of ancestral features by inheritance, as opposed to kenogenesis, in which the inherited characteristics are modified by environment.

A recent study on radiation exposure by the AEC's division of biology and medicine stated: `` The question of the biological effect of ( radiation ) doses is not considered '' herein.

Anatomy ( from the Ancient Greek, anatemnein: ana, " separate, apart from ", and temnein, " to cut up, cut open ") is a branch of biology and medicine that considers the structure of living things.

A rare exception to the dominance of α-amino acids in biology is the β-amino acid beta alanine ( 3-aminopropanoic acid ), which is used in plants and microorganisms in the synthesis of pantothenic acid ( vitamin B < sub > 5 </ sub >), a component of coenzyme A.

In evolutionary biology, adaptive radiation is the evolution of ecological and phenotypic diversity within a rapidly multiplying lineage.

Furthermore, there is no proposed mechanism of action by which the positions and motions of stars and planets could affect people and events on Earth that does not contradict well understood, basic aspects of biology and physics.

Conservation is an interdisciplinary field as conservators have backgrounds in the fine arts, sciences ( including chemistry, biology, and materials science ), and closely related disciplines, such as art history, archaeology, studio art, and anthropology.

She is the head of a research group, which is located in the Weatherall Institute of Molecular Medicine and working on a wide range of biological disciplines encompassing molecular biology, biochemistry, cellular immunology and intracellular neurophysiology.

Research grade agar is used extensively in plant biology as it is supplemented with a nutrient and vitamin mixture that allows for seedling germination in Petri dishes under sterile conditions ( given that the seeds are sterilized as well ).

Early research on the role of antioxidants in biology focused on their use in preventing the oxidation of unsaturated fats, which is the cause of rancidity.

Biostatistics ( a portmanteau of biology and statistics ; sometimes referred to as biometry or biometrics ) is the application of statistics to a wide range of topics in biology.

This part of biochemistry is often called molecular biology.

* Molecular biology is the study of molecular underpinnings of the process of replication, transcription and translation of the genetic material.

The central dogma of molecular biology where genetic material is transcribed into RNA and then translated into protein, despite being an oversimplified picture of molecular biology, still provides a good starting point for understanding the field.

Structural biology is the study of the structural properties of the biopolymers.

Botany, plant science ( s ), or plant biology ( from Ancient Greek, " pasture, grass, or fodder " and that from, " to feed or to graze "), a discipline of biology, is the science of plant life.

Another grass species, Brachypodium distachyon is also an experimental model for understanding genetic, cellular and molecular biology.

A green alga, Chlamydomonas reinhardtii, is a model organism that has proven important in advancing knowledge of cell biology.

The biology of a population is greater than the collective biologies of its individuals.

The actual process of analyzing and interpreting data is referred to as computational biology.