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Short answer The relative large surface area of the white sclera in humans has been linked to an enhanced ability to detect eye gaze. Background The white of the eye is caused by the sclera. Human eyes indeed have the highest relative amount of visibly exposed white sclera. The amount of visible sclera provides information about the orientation of the ...


I would strongly question whether the underlying claim that testicular asymmetry is generally true. While there is no known clinical significance of testicular asymmetry, most men probably have no noticable difference in testicular size. There have been a number of studies over several decades, and findings have been inconsistent. Braus (1956) stated that ...

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