[[Image:325979 dna150.jpg|thumbnail|150px|left|[[Columbia University]] [[psychiatry]] professors Drs. William Byrne and Bruce Parsons stated: "There is no evidence that at present to substantiate a [[biology|biological]] theory. [T]he appeal of current biological explanations for sexual orientation may derive more from dissatisfaction with the present status of [[psychosocial]] explanations than from a substantiating body of [[Experimental science|experimental]] data".<ref>http://www.cwfa.org/images/content/bornorbred.pdf</ref>]]
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[[Image:325979 dna150.jpg|thumbnail|150px|right|[[Columbia University]] [[psychiatry]] professors Drs. William Byrne and Bruce Parsons stated: "There is no evidence that at present to substantiate a [[biology|biological]] theory. [T]he appeal of current biological explanations for sexual orientation may derive more from dissatisfaction with the present status of [[psychosocial]] explanations than from a substantiating body of [[Experimental science|experimental]] data".<ref>http://www.cwfa.org/images/content/bornorbred.pdf</ref>]]
That homosexuality is affected by environment and nurture has been the historical secular position.
That homosexuality is affected by environment and nurture has been the historical secular position.