![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | Men
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | friendliness and smiling in, 155163, 157 , 158
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | friendship and loyalty, 33
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | genetic or congenital abnormalities and low testosterone levels, 3839
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | geography, superiority at, 52
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | guns, appeal of, 54
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | handsomeness in, 7172
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | homosexuality and testosterone levels, 121
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | in utero testosterone and, 1215, 121
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | initiation ceremonies and entrance into manhood, 115, 200201, 206
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | peacock behavior in, 6667, 107, 108, 197
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | photography, preferences in, 54
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![](/files/03/73/87/f037387/public/a174427bdf448e53ce20e149b0ddeee1.gif) | physical characteristics and testosterone, 4, 15, 32, 34, 64
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