If
you haven’t come across them before, they’re called preauricular
sinuses. And while they’re a completely normal thing to have, not many
people know why they exist.
In the UK, just under one per
cent of people have them. In the U.S., the frequency is even lower, and
in Asia and parts of Africa, around four to ten per cent of people may
have them, theMirror reports.
Simply put, the little holes are ‘nodules, dents, or
dimples’ that are exposed anywhere around the external ear – usually
where the face and cartilage meet.
The preauricular sinus
is a hereditary birth defect that was first documented by a scientist
called Van Heusinger in 1864, and while they’re usually only found on
one ear, up to 50 per cent of people have them on both.
The cause isn’t known but Business Insider
reported that evolutionary biologist, Neil Shubin, theorised they could
be an ‘evolutionary remnant of fish gills’ – which is pretty fucking
cool.
ليست هناك تعليقات:
إرسال تعليق