In some cases bisexuality is actually a form of fitness favored by evolution. For example, in the absence of male whiptail lizards (Cnemidophorus), females reproduce by pairing up with each other. During the breeding season females will take turns switching between "male" and "female" roles as their hormones fluctuate. Estrogen levels are high during ovulation ("female" role) and much lower after laying eggs ("male" role). While in the "male" role, a female lizard will mount another in the "female" role and go through the motions of sex to stimulate egg-laying. The hatchlings produced are all female. This all-female species has evolved from lizards with two sexes, but their eggs develop without fertilization (parthenogenesis). Female whiptail lizards can lay eggs without sex, but they lay far fewer eggs than if they engage in sexual stimulation by another female.
Encompassing the fluctuations and the flexibility of gender in genderfluid people, the flag features colors associated with femininity, masculinity, and everything in between. The pink stands for femininity. The white represents the lack of gender. The purple represents the combination of masculinity and femininity. The black symbolizes all genders, including third genders. The blue reflects masculinity.
^ Doussantousse, S. (2005) "...The Lao Kathoey's characteristics appear to be similar to other transgenders in the region..." in Male Sexual Health: Kathoeys in the Lao PDR, South East Asia – Exploring a gender minority Archived 2007-08-19 at the Wayback Machine from the Transgender ASIA Research Centre Archived 2007-08-23 at the Wayback Machine. Retrieved 2007-07-22.
At the federal level, in 2008 and 2009, there was a wide-ranging suite of reforms to provide equal entitlements and responsibilities for same-sex couples in areas such as social security, employment, taxation and superannuation. However, there remains one significant area of difference between the treatment of same-sex and heterosexual relationships, and that is in relation to the institution of marriage. While there are fewer and fewer rights and obligations attached to married couples which do not attach to de facto couples—a status currently encompassing same-sex couples in most legal contexts—supporters of gay rights argue this is not enough, and that the remaining differences are unacceptable.
Marriage is a privilege, not a right. The US Constitution contains no explicit right to marry.  The European Court of Human Rights ruled on June 24, 2010 that the state has a valid interest in protecting the traditional definition of marriage, and stated that the Convention for the Protection of Human Rights and Fundamental Freedoms "enshrined the traditional concept of marriage as being between a man and a woman."   Society can choose not to allow same-sex couples to marry, just as it does not allow a person to marry more than one partner or allow minors or close relatives to marry.  Matthew D. Staver, JD, Dean of the Liberty University School of Law, explained: "The unifying characteristics of the protected classes within the Civil Rights Act of 1964 include (1) a history of longstanding, widespread discrimination, (2) economic disadvantage, and (3) immutable characteristics... 'Sexual orientation' does not meet any of the three objective criteria shared by the historically protected civil rights categories." 
A seven-colour rainbow flag is a common symbol of the international cooperative movement. The rainbow flag has been the cooperative emblem since 1921 when the International Co-operative Congress of World Co-op Leaders met in Basel, Switzerland to identify and define the growing cooperative movement’s common values and ideals to help unite co-ops around the world.
Some in the homosexual community accuse those who self-identify as bisexual of duplicity, believing they are really homosexuals who engage in heterosexual activity merely to remain socially acceptable. They may be accused of "not doing their part" in gaining acceptance of "true" homosexuality. Some homosexual people may also suspect that a self-described bisexual is merely a homosexual in the initial stage of questioning their presumed heterosexuality, and will eventually accept that they are homosexual; this is expressed by a glib saying in gay culture: "Bi now, gay later." These situations can and do take place, but do not appear to be true of the majority of self-described bisexuals. Nonetheless, bisexuals do sometimes experience lesser acceptance from homosexual people, because of their declared orientation. Bisexual experimentation is also common in adolescents of every sexual orientation.
The Defense of Marriage Act (DOMA) was enacted in 1996. DOMA's Section 2 says that no state needs to recognize the legal validity of a same-sex relationship even if recognized as marriage by another state. It purports to relieve a state of its reciprocal obligation to honor the laws of other states as required by the Constitution's full faith and credit clause. Even before DOMA, however, states sometimes refused to recognize a marriage from another jurisdiction if it was counter to its "strongly held public policies". Most lawsuits that seek to require a state to recognize a marriage established in another jurisdiction argue on the basis of equal protection and due process, not the full faith and credit clause.[a]
Oglala Sioux Tribe (25 January) Stockbridge-Munsee Community Band of Mohican Indians (2 February) Greenland (1 April) Colombia (28 April) Tulalip Tribes of Washington (6 May) Jalisco [statewide] (12 May) Campeche (20 May) Colima (12 June) Michoacán (23 June) Morelos (5 July) Isle of Man (22 July) San Pedro Cholula, Puebla (18 September) British Antarctic Territory (13 October) Menominee Indian Tribe of Wisconsin (3 November) Cherokee Nation (9 December) Gibraltar (15 December)
+ UN decl. sign. Concubinage union since 2008 Legal since 2013 Legal since 2009 Since 2009 Bans all anti-gay discrimination. Pathologization or attempted treatment of sexual orientation by mental health professionals illegal since 2017 Transgender persons can change their legal gender and name without surgeries or judicial order required since 2009. Self-determination since 2018.
Trinidad and Tobago organised its first pride parade on 27 July 2018 at the Nelson Mandela Park in Port of Spain. Expressing his opinion on the march, Roman Catholic Archbishop Rev. Jason Gordon said: "TT is a democracy and as such members of society have a right to protest whenever they believe their rights are not being upheld or violated. (The) LGBT+ community has several areas where there is legitimate concern and these have to be taken seriously by the country and by the government and people of TT. "
In 2011, the United Nations Human Rights Council passed its first resolution recognizing LGBT rights, following which the Office of the United Nations High Commissioner for Human Rights issued a report documenting violations of the rights of LGBT people, including hate crimes, criminalization of homosexual activity, and discrimination. Following the issuance of the report, the United Nations urged all countries which had not yet done so to enact laws protecting basic LGBT rights.
Legalizing gay marriage could lead down a "slippery slope," giving people in polygamous, incestuous, bestial, and other nontraditional relationships the right to marry.  Glen Lavy, JD, senior counsel with the Alliance Defense Fund, argued in a May 21, 2008 Los Angeles Times op-ed, "The movement for polygamy and polyamory is poised to use the successes of same-sex couples as a springboard for further de-institutionalizing marriage."  In Apr. 2013 Slate writer Jillian Keenan wrote: "Just like heterosexual marriage is no better or worse than homosexual marriage, marriage between two consenting adults is not inherently more or less 'correct' than marriage among three (or four, or six) consenting adults."  James C. Dobson, Founder and Chairman of Focus on the Family, predicted in 2005 that legalizing same-sex marriage will enable "group marriage," "marriage between daddies and little girls," and "marriage between a man and his donkey." 
Gene Robinson, openly gay former Bishop of the Episcopal Diocese of New Hampshire, stated in Sep. 2012: "Scripture says where love is, there is God also. And they [religious people] see that love in our families, and I think people can't help but be supportive."  Lee Jefferson, Assistant Professor of Religion at Centre College, wrote that the Bible makes no mention of same-sex marriage at all, nor does it make reference to sexual orientation as it is understood today.  Reform Judaism, which comprises about 80% of the American Jewish population, endorses same-sex marriage, and the Central Conference of American Rabbis has supported gay marriage since 1996.  The Episcopal Church stated in Resolution A095, made in 2006, that it "oppose[s] any state or federal constitutional amendment that prohibits same-sex civil marriage or civil unions." The Presbyterian Church (USA) voted in June 2014 to allow its pastors to marry same-sex couples. The United Church of Christ General Synod voted in July 2005 to affirm "equal marriage rights for couples regardless of gender." The 1996 General Assembly of the Unitarian Universalist Association adopted "a position in support of legal recognition for marriage between members of the same sex."   
In 2013, the Supreme Court ruled that the federal government could not deny federal benefits of marriage to same sex couples, if the couple was married in a state that allowed the marriage. Some states do not fully recognize same sex marriage, but they do offer civil unions or domestic partnerships, so that the same sex couples can enjoy some of the same rights and benefits of marriage.
Kinsey's 1948 work Sexual Behavior in the Human Male found that "46% of the male population had engaged in both heterosexual and homosexual activities, or 'reacted to' persons of both sexes, in the course of their adult lives". Kinsey himself disliked the use of the term bisexual to describe individuals who engage in sexual activity with both males and females, preferring to use bisexual in its original, biological sense as hermaphroditic, stating, "Until it is demonstrated [that] taste in a sexual relation is dependent upon the individual containing within his anatomy both male and female structures, or male and female physiological capacities, it is unfortunate to call such individuals bisexual." The Janus Report on Sexual Behavior, published in 1993, showed that 5 percent of men and 3 percent of women considered themselves bisexual and 4 percent of men and 2 percent of women considered themselves homosexual.
Girls who are raised apart from their fathers are reportedly at higher risk for early sexual activity and teenage pregnancy.  Children without a mother are deprived of the emotional security and unique advice that mothers provide. A 2012 study by Mark Regnerus, PhD, Associate Professor of Sociology at the University of Texas at Austin, found that children raised by parents who had same-sex relationships suffered more difficulties in life (including sexual abuse and unemployment in later life) than children raised by "intact biological famil[ies]."  Doug Mainwaring, the openly gay co-founder of National Capital Tea Party Patriots, stated that "it became increasingly apparent to me, even if I found somebody else exactly like me, who loved my kids as much as I do, there would still be a gaping hole in their lives because they need a mom... I don't want to see children being engineered for same-sex couples where there is either a mom missing or a dad missing." 
These words dehumanize transgender people and should not be used in mainstream media. The criteria for using these derogatory terms should be the same as those applied to vulgar epithets used to target other groups: they should not be used except in a direct quote that reveals the bias of the person quoted. So that such words are not given credibility in the media, it is preferred that reporters say, "The person used a derogatory word for a transgender person." Please note that while some transgender people may use "tranny" to describe themselves, others find it extremely offensive.
Apart from measures to protect the prerogatives of citizens, the prosecution of homosexuality as a general crime began in the 3rd century of the Christian era when male prostitution was banned by Philip the Arab. By the end of the 4th century, after the Roman Empire had come under Christian rule, passive homosexuality was punishable by burning. "Death by sword" was the punishment for a "man coupling like a woman" under the Theodosian Code. Under Justinian, all same-sex acts, passive or active, no matter who the partners, were declared contrary to nature and punishable by death.
Browse sexual orientation and gender identity (SOGI) profiles of countries in Africa, the Americas, Asia, Europe & Central Asia, the Middle East & North Africa, and the United States. Profiles are primarily taken from sections of the Human Rights Watch 2019 World Report that relate to the rights of lesbian, gay, bisexual, and transgender (LGBT) people. The report, released in January 2019, documented events of 2018.
There are several independent rainbow flags in use today. The pride flag represents LGBT pride (since 1978). The international peace flag is especially popular in Italy (since 1961). The International Co-operative Alliance adopted a rainbow flag in 1925. A similar flag is used in Andean indigenism in Peru and Bolivia to represent the legacy of the Inca Empire (since ca. 1920).
Harvard University historian Nancy F. Cott stated that until two centuries ago, "monogamous households were a tiny, tiny portion" of the world's population, and were found only in "Western Europe and little settlements in North America." Polygamy has been widespread throughout history, according to Brown University political scientist Rose McDermott, PhD.   Interracial marriage was once illegal in a majority of US states, and was still banned in half of US states until the 1950s.  Official unions between same-sex couples, indistinguishable from marriages except for gender, are believed by some scholars to have been common until the 13th Century in many countries, with the ceremonies performed in churches and the union sealed with a kiss between the two parties. 
Baker also asked Paramount to make vertical banners that would be split and displayed from the angular double bars of the old-style lamp posts on Market Street. Baker and Paramount’s vice president Ken Hughes agreed to drop the hot pink and turquoise stripes and replace the indigo stripe with royal blue — resulting in three stripes on one side of the lamp post and three on the other.
Whenever you ask someone “What is bisexuality? What does it mean to be bisexual+?” you may find the answer varies, depending upon who is answering the question. Is bisexuality defined by identity, behavior, attractions – or some combination of these? Where does bisexuality begin and end? Human sexuality is sometimes seen as a continuum, with same-sex attractions on one end and different-sex attractions on the other, a notion popularized by the Kinsey scale. Bisexuality, then, must fall somewhere in the middle. But where? Does bisexuality refer only to the middle point, or 50/50 attraction? Or does bisexuality encompass all the space between the extremes, or even outside of it entirely? How much bisexual+ attraction and/or behavior does it take to make a person bisexual+?
There is no complete data on the number of same-sex marriages conducted in the United States. Marriages and divorces are recorded by states, counties, and territories, plus New York City and the District of Columbia, but not by the federal government. States such as Oregon do not distinguish between opposite-sex and same-sex marriages in their official records. The legal records on marriage and divorce belong to the states. In August 2016, the Treasury Department estimated the number of same-sex marriages by linking the tax returns of same-sex couples who had filed jointly in 2014 with their Social Security records. (Although this method excluded couples who file singly, these are small in number; of all married couples who file taxes, 97.5% file jointly.) This research showed that in 2014 there were about 183,280 married same-sex couples in the country, or "roughly a third of 1 percent of all marriages" according to the New York Times.
As noted above, many societies traditionally chose to ignore the issue of same-sex marriage by treating same-sex intimacy as a subject unsuitable for discussion. Many of these jurisdictions, as well as those that actively criminalize same-sex unions, contended that homosexuality and lesbianism are mental disorders and built their public policies on this premise. In treating same-sex desire as a psychiatric illness, these cultures moved same-sex intimacy and marriage from the realm of civil regulations (the domain of contract law) to that of public safety (the domain of criminal law). In such societies, the possibility of arrest or institutionalization further reinforced taboos on same-sex intimacy and discussions thereof, typically driving such activities underground.
Human bisexuality has mainly been studied alongside homosexuality. Van Wyk and Geist argue that this is a problem for sexuality research because the few studies that have observed bisexuals separately have found that bisexuals are often different from both heterosexuals and homosexuals. Furthermore, bisexuality does not always represent a halfway point between the dichotomy. Research indicates that bisexuality is influenced by biological, cognitive and cultural variables in interaction, and this leads to different types of bisexuality.
External manifestations of gender, expressed through a person's name, pronouns, clothing, haircut, behavior, voice, and/or body characteristics. Society identifies these cues as masculine and feminine, although what is considered masculine or feminine changes over time and varies by culture. Typically, transgender people seek to align their gender expression with their gender identity, rather than the sex they were assigned at birth.
Browse sexual orientation and gender identity (SOGI) profiles of countries in Africa, the Americas, Asia, Europe & Central Asia, the Middle East & North Africa, and the United States. Profiles are primarily taken from sections of the Human Rights Watch 2019 World Report that relate to the rights of lesbian, gay, bisexual and transgender (LGBT) people. The report, released in January 2019, documented events of 2018.
According to Aristotle, although most "belligerent nations" were strongly influenced by their women, the Celts were unusual because their men openly preferred male lovers (Politics II 1269b). H. D. Rankin in Celts and the Classical World notes that "Athenaeus echoes this comment (603a) and so does Ammianus (30.9). It seems to be the general opinion of antiquity." In book XIII of his Deipnosophists, the Roman Greek rhetorician and grammarian Athenaeus, repeating assertions made by Diodorus Siculus in the 1st century BC (Bibliotheca historica 5:32), wrote that Celtic women were beautiful but that the men preferred to sleep together. Diodorus went further, stating that "the young men will offer themselves to strangers and are insulted if the offer is refused". Rankin argues that the ultimate source of these assertions is likely to be Poseidonius and speculates that these authors may be recording "some kind of bonding ritual ... which requires abstinence from women at certain times".
The Supreme Court has declared that it is unconstitutional to deny marriage licenses to same-sex couples in all states, but as state laws were not invalidated, individual injunctions must still be obtained from the courts / Legal in Mexico City (2010), Coahuila (2014), Chihuahua (2015), Michoacán (2016), Colima (2016), Morelos (2016), Campeche (2016), Veracruz (2016), Baja California (2017), Querétaro (2017), Chiapas (2017) and Puebla (2017) Bans all anti-gay discrimination / Transgender persons can change their legal gender and name in Mexico City (2008), Michoacán (2017), Nayarit (2017), Coahuila,and Hidalgo (2019)
Throughout Hindu and Vedic texts, there are many descriptions of saints, demigods, and even the Supreme Lord transcending gender norms and manifesting multiple combinations of sex and gender. Alka Pande says that alternate sexuality was an integral part of ancient India and homosexuality was considered to be a form of the sacred, drawing upon the examples of the hermaphrodite Shikhandi and Arjuna who became a eunuch. Ruth Vanita argues that ancient India was relatively tolerant and views on it were ambiguous, from acceptance to rejection.
A British woman (referred to as QT) sued the Immigration Department after it declined to recognise her UK civil partnership and refused to grant her a dependant visa. In February 2015, a judge agreed that the plaintiff had been discriminated against and moved the case forward to the Hong Kong High Court. The court heard the case on 14 May 2015. After prolonged deliberation, it dismissed the case in March 2016. The woman appealed to the Court of Appeal, which agreed to hear the case on 15 and 16 June 2017. The appeal was led by prominent human rights barrister Dinah Rose QC.
The reformer Thomas Müntzer (1489–1525) connected socially revolutionary claims with his preaching of the gospel. He is often portrayed with a rainbow flag in his hand. The Thomas Müntzer statue in the German town of Stolberg also shows him holding a rainbow flag in his hand. In the German Peasants' War of the 16th century, the rainbow flag together with the peasants' boot ("Bundschuh") was used as the sign of a new era, of hope and of social change. The choice of the rainbow in the form of a flag harkens back to the rainbow as a symbol of biblical promise. According to the Bible, God first created the rainbow as a sign to Noah that there would never again be a worldwide flood, also known as the Rainbow covenant.
The June 2013 decision of the U.S. Supreme Court in United States v. Windsor striking down the law barring federal recognition of same-sex marriage gave significant impetus to the progress of lawsuits that challenged state bans on same-sex marriage in federal court. Since that decision, with only a few exceptions, U.S. District Courts and Courts of Appeals have found state bans on same-sex marriage unconstitutional, as have several state courts. The exceptions have been a state court in Tennessee, U.S. district courts in Louisiana and Puerto Rico, and the U.S. Court of Appeals for the Sixth Circuit. The U.S. Supreme Court has agreed to hear appeals from that circuit's decision.
Legal procedures exist in some jurisdictions which allow individuals to change their legal gender or name to reflect their gender identity. Requirements for these procedures vary from an explicit formal diagnosis of transsexualism, to a diagnosis of gender identity disorder, to a letter from a physician that attests the individual's gender transition or having established a different gender role. In 1994, the DSM IV entry was changed from "Transsexual" to "Gender Identity Disorder". In many places, transgender people are not legally protected from discrimination in the workplace or in public accommodations. A report released in February 2011 found that 90% of transgender people faced discrimination at work and were unemployed at double the rate of the general population, and over half had been harassed or turned away when attempting to access public services. Members of the transgender community also encounter high levels of discrimination in health care.
The anti-LGBT discourse of these times equated both male and female homosexuality with mental illness. Inspired by Stokely Carmichael's "Black is Beautiful", Gay civil rights pioneer and participant in the Annual Reminders Frank Kameny originated the slogan "Gay is Good" in 1968 to counter social stigma and personal feelings of guilt and shame.
In notable graphic novels, Love and Rockets (1981 to 1996) subtly portrays bisexuality; Krazy Kat (1913 to 1944) is a comic-strip character whose love is not limited by sex; Alan Moore's Lost Girls (1991 to 2006) portrays bisexual versions of three famous literary characters; Terry Moore's Strangers in Paradise (1993 to 2007) includes several bisexual characters.
In the television program "Bottom", Richie is shown consistently throughout the series to be trying to get a girlfriend but to be either secretly attracted to men or accidentally finding more luck with men. He maintains a facade of heterosexuality throughout this, although in the stage adaptations he is shown to be far more attracted to men but still also to women.
In January 2019 the Hong Kong High Court agreed to hear two challenges to the city's refusal to recognise same-sex marriage. The two separate legal challenges were mounted by a 21-year-old University of Hong Kong student, known as TF, and a 31-year-old activist, known as STK, who argued that the inability of same-sex couples to get married violated their right to equality under the city’s Bill of Rights and the Basic Law. The judge in the case gave the applications license to be heard by the court, though suspended them to first hear another case involving a 29 year old lesbian, who is seeking for a civil union partnership system to be implemented in Hong Kong.
The word transgender historically (as well as within the context of this essay) refers to people who defy societal expectations regarding gender. Trans activists of the 1990s who championed the term left it purposely open-ended — it may refer to transsexuals (i.e., people who transition, who I’ll get to in a minute), people who identify outside of the gender binary, crossdressers (i.e., people who identify with their birth-assigned gender, but sometimes dress and/or express themselves as the other gender), people whose gender expression is non-conforming (e.g., feminine men, masculine women, people who are androgynous, etc.), and possibly others. Not everyone who falls under this umbrella will self-identify as “transgender,” but are all viewed by society as defying gender norms in some significant way.
In September 2011, the Coalition Government announced its intention to introduce same-sex civil marriage in England and Wales by the May 2015 general election. However, unlike the Scottish Government's consultation, the UK Government's consultation for England and Wales did not include provision for religious ceremonies. In May 2012, three religious groups (Quakers, Liberal Judaism and Unitarians) sent a letter to David Cameron, asking that they be allowed to solemnise same-sex weddings.
Because this view considers biological reproduction a sort of social obligation, its advocates tended to frame individuals’ legal and moral commitment to one another as a matter of genetic relatedness. In cases of inheritance or custody, for instance, they generally defined the parents’ legal duties to their biological children differently than those to their stepchildren. Among groups who feel strongly that same-sex marriage is problematic, there is also a tendency for the legal relationships of spouses, parents, and children to converge. Typically, these societies provide for the automatic inheritance of property between spouses, and between parents and children, and allow these close kin to co-own property without joint ownership contracts. In addition, such societies often allow close kin a variety of automatic privileges such as sponsoring immigration visas or making medical decisions for one another; for those with whom one shares no close kin relationship, these privileges typically require legal interventions. Such legal circumventions are usually more difficult for, and in some cases even prohibited to, same-sex couples.