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A Separate Creation
''A Separate Creation: The Search for the Biological Origins of Sexual Orientation'' is a 1996 book about the development of sexual orientation by journalist〔Stein 1999. p. 166.〕 Chandler Burr.〔Burr 1996. p. iv.〕 The book received a mixture of praise and criticism from reviewers.
==Summary==
Expanding on his 1993 ''Atlantic'' article "Homosexuality and Biology",〔Berman 2003. p. 511.〕 Burr discusses the work of researchers such as Simon LeVay, Laura A. Allen, Roger Gorski, and Dean Hamer,〔Berman 2003. p. 498.〕 and compares the clinical profiles of sexual orientation and handedness, arguing that the best analogy for homosexuality is left-handedness.〔Burr 1996. pp. 14-15.〕
Burr describes the different views that researchers have expressed of sexual orientation, observing that while some believe that sexual orientations are distributed across a population in a way that could be mapped onto a bell curve between poles of heterosexuality and homosexuality, with most people having some measure of bisexuality, others believe that sexual orientation is bimodally distributed, with most people being either heterosexual or homosexual and few being bisexual. Some researchers, including an anonymous colleague of Hamer who would not let Burr identify him, think that erotic interests divide neatly into sex-specific types. Burr also discusses the various ways in which same-sex behavior among animals is and is not similar to human homosexuality.〔Murphy 1997. pp. 14, 232-233.〕〔Burr 1996. pp. 4, 232, 243-247.〕
In his account of LeVay's research, Burr claims that LeVay's 1991 neuroanatomical report was the first major biological investigation of sexual orientation. Burr describes some of the limitations of LeVay's study. Neurobiologist and psychiatrist William Byne, as Burr notes, pointed out that testosterone effects, medications being used by subjects with AIDS, and disease effects may have had an effect on the comparative size of INAH 3 (the area of the brain LeVay studied), and that measuring these tiny cell groups is difficult. Regarding attempts to change people's sexual orientations through therapy, Burr cites Byne's view that the literature on the subject shows that very few people have been able to successfully achieve such change, and that sexual orientation is largely immutable. Burr mentions the concern of some commentators that current sexual orientation research has the potential to reinvigorate pathological interpretations of homosexuality. He quotes biologist Richard Lewontin's assertion that researchers need to show why the origins of homosexuality is an important question, and describes the views of clinical geneticist Philip Reilly, who believes that women should have the right to abort a fetus predisposed to become gay.〔Murphy 1997. pp. 4, 29, 62-63, 235, 238, 240, 247, 253.〕〔Burr 1996. pp. 3, 43-44, 81, 163-181, 273, 278.〕
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