between biology and sexual orientation is a subject of on-going research. While scientists do not know the exact cause of sexual orientation, they theorize...

Sexual orientation is an enduring pattern of romantic or sexual attraction (or a combination of these) to persons of the opposite sex or gender, the same...

A relationship between handedness and sexual orientation has been suggested by a number of researchers, who report that heterosexual individuals are somewhat...

relationship between the environment and sexual orientation is a subject of research. In the study of sexual orientation, some researchers distinguish environmental...

sexual orientation is difficult for a variety of reasons, including the nature of the research questions. Most of the studies on sexual orientation rely...

Sexual fluidity is one or more changes in sexuality or sexual identity (sometimes known as sexual orientation identity). Sexual orientation is stable...

the sexual orientation that emerges later in the individual. Prenatal hormones may be seen as the primary determinant of adult sexual orientation, or...

Sexual orientation is an enduring personal pattern of romantic attraction or sexual attraction (or a combination of these) to persons of the opposite...

portmanteau of gay and radar) is a colloquialism referring to the intuitive ability of a person to assess others' sexual orientations as homosexual, bisexual...

known as the older brother effect, has been correlated with male sexual orientation, with a significant volume of research finding that the more older...

identity. Sexual identity may also refer to sexual orientation identity, which is when people identify or dis-identify with a sexual orientation or choose...

Biology and sexual orientation Environment and sexual orientation Fraternal birth order and male sexual orientation Handedness and sexual orientation...

Sexual orientation discrimination (also known as sexualism) is discrimination based on a person's sex, sexual orientation, gender identity, or pregnancy...

A mixed-orientation marriage is a marriage between partners of differing sexual orientations. The broader term is mixed-orientation relationship, sometimes...

Homosexuality is a sexual attraction, romantic attraction, or sexual behavior between members of the same sex or gender. As a sexual orientation, homosexuality...

sexual orientation Environment and sexual orientation Biology and sexual orientation Neuroscience and sexual orientation Prenatal hormones and sexual...

Animals portal Pre-copulatory isolation mechanisms in animals Biology and sexual orientation Green Porno, a series of short films about animal mating, enacted...

romantic attraction, sexual attraction or sexual behavior between people of the opposite sex or gender. As a sexual orientation, heterosexuality is "an...

the sexual orientation of the victim, making it difficult to study the prevalence in WSW communities. LGBT portal Biology and sexual orientation Ego-dystonic...

gender and sex are not determining factors in their romantic or sexual attraction to others. Pansexuality is sometimes considered a sexual orientation in...

heterosexual and homosexual attraction. Bisexuality is one of the three main classifications of sexual orientation along with heterosexuality and homosexuality...

Gender and Sexual Diversities (GSD), MOGII (Marginalized Orientations, Gender Identities, and Intersex) and MOGAI (Marginalized Orientations, Gender...

to be changed as well. Biology and sexual orientation Conversion therapy Environment and sexual orientation Sexual orientation change efforts Evans 1978...

Biastophilia Biblical courtship Bidder's organ Bikini waxing Biology and sexual orientation Birth control Birth Control (film) Birth Control Council of...

Gender and sexual diversity (GSD), or simply sexual diversity, refers to all the diversities of sex characteristics, sexual orientations and gender identities...

response cycle. Someone's sexual orientation is their pattern of sexual interest in the opposite and/or same sex. Physical and emotional aspects of sexuality...

linked with both sexual orientation, gender dysphoria and autism. Alternatively, autistic people may be less reliant on social norms and thus are more open...

biology, medicine, psychology, epidemiology, sociology, and criminology. Topics of study include sexual development (puberty), sexual orientation, gender...

Heterosexual–Homosexual Rating Scale, is used in research to describe a person's sexual orientation based on one's experience or response at a given time. The scale typically...

evolutionary need for reproduction. Biology and sexual orientation Prenatal hormones and sexual orientation Sexual orientation Who, Marquis Who's (November 1995)...