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This article makes two questionable assertions. First, Tyrannosaurus rex might well have had excellent binocular vision and been a predator, but still have had a handicap for the detection of motion as my cats do. Second, when Thomas R. Holtz Jr. states that binocular vision “almost certainly was a predatory adaptation,” that puts us binocular […]

Gay Males’ Sibling Link: Men’s homosexuality tied to having older brothers

Birth order may steer some men toward homosexuality in a process that perhaps begins before birth.

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If having biological older brothers correlates to homosexuality, as claimed in your article, then we would expect that in the past, when families were larger, there would be a greater proportion of homosexuals.