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Sign up or log in to share. Most likely no, they may share the same genetics but you also have to factor in environmental conditions, nutrition, fitness, etc and since it has been shown that you're surrounding environment can affect your height I'm guessing the same applies to penis length as well. A good example would be the Sprouse twins www3.

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A twentysomething man had an alarming experience on a camping trip with his father and two brothers. It was like seeing a great white whale breaching alongside dolphins. None of us look strikingly like our parents, but we are clearly brothers, except for this newly discovered alien appendage on my younger brother.

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All rights reserved. The male American alligator, Alligator mississippiensiskeeps its penis erect but tucked inside its body until mating. More than 10, reptile species in every shape and size scurry and slither across Earth, from garter snakes to crocodiles — and their nether regions are just as wildly varied.

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The relationship between biology and sexual orientation is a subject of research. While scientists do not know what determines an individual's sexual orientationthey theorize that it is caused by a complex interplay of genetichormonaland environmental influences. Biological theories for explaining the causes of sexual orientation are favored by scientists.

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Your are viewing a read-only archive of the old DiS boards. Please hit the Community button above to engage with the DiS! My grampa's birthday is on the same date as my aunt and uncle's, who are twins.

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Assuming that testosterone levels from a dizygotic male twin fetus may lead to enhanced testosterone exposure of its co-twins, we aimed to test the prenatal testosterone hypothesis by comparing same-sex with opposite-sex dizygotic twins with respect to neurodevelopmental symptoms. Girls with a female co-twin had an increased risk of reaching the cut-off score for ADHD compared with girls with a male co-twin. Both boys and girls with a female co-twin displayed a larger number of traits related to attention deficit and repetitive and stereotyped behaviors than those with a male twin.

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Chat or rant, adult content, spam, insulting other members, show more. Harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing, show more. Yahoo Answers.

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Genetically identical twins can differ in their self-reported sexual orientations. Measures of sexual orientation, which are free of the limitations of self-report, include genital arousal and pupil dilation while viewing sexual stimuli depicting men or women. We examined these responses in 6 male twin pairs and 9 female twin pairs who reported discordant sexual orientations.

Comments

  • Moshe 27 days ago

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