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An epicanthic fold or epicanthus [6] is a skin fold of the upper eyelid that covers the inner corner (medial canthus) of the eye. [3] However, variation occurs in the nature of this feature and the possession of "partial epicanthic folds" or "slight epicanthic folds" is noted in the relevant literature.
The human eye, showing the iris and pupil. In 1802, philosopher William Paley called it a miracle of "design."In 1859, Charles Darwin himself wrote in his Origin of Species, that the evolution of the eye by natural selection seemed at first glance "absurd in the highest possible degree". [3]
Pseudostrabismus is the false impression that the eyes are misaligned, which may lead to the incorrect diagnosis of strabismus. Pseudostrabismus is more likely to be observed in East Asian or Native American infants, due to the presence of epicanthic folds obscuring the medial aspect of each eye.
An interdisciplinary analysis of Native American skulls confirmed that Beringia "was the homeland of Native Americans" and stated that "The evolution and diffusion of an extremely derived north-east Asian phenotype, the high heterogeneity of founder groups, and the beginning of in situ New World evolution shaped by migration and genetic drift ...
Image of a European female (left) and an East Asian male (right) human body seen from front (upper) and back (lower). Adult human bodies photographed whose naturally-occurring pubic, body, facial, but not head hair have been deliberately removed to show anatomy. Retouched with anterior and posterior views.
The second photograph (the "Older East Asian Male") should indicate that the subject has East Asian eyes that lack the epicanthic fold. —Preceding unsigned comment added by Dneyder (talk • contribs) 14:57, 2 September 2009 (UTC) be bold and correct it yourself. I don't know if you're right because as it says on my user page, I'm totally blind.
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For the past 140 years, the camera-type cephalopod eye has been compared with the vertebrate eye as an example of convergent evolution, where both types of organisms have independently evolved the camera-eye trait and both share similar functionality. Contention exists on whether this is truly convergent evolution or parallel evolution. [3]