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Darwin’s Point, plica semilunaris

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Darwin’s Point, plica semilunaris

Post by sujin007 on Wed Nov 14, 2012 10:36 pm

Darwin’s point is found in the majority of mammals, and humans are no exception. It is most likely used to help focus sounds in animals, but it no longer has a function in humans. The point is a small thick nodule at the junction of the upper and middle sections of the ear in humans.


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Re: Darwin’s Point, plica semilunaris

Post by sujin007 on Wed Nov 14, 2012 10:38 pm

Only 10.4% of the human population still has this visible left-over mark of our past, but it is possible that a much larger number of people carry the gene that produces it as it does not always cause the ear tubercle to appear.


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