While it isn’t exactly clear why preauricular sinuses occur, one scientist has an idea. According to one evolutionary biologist, Neil Shubin, these holes could be a remnant of fish gills.
https://www.youtube.com/watch?v=C6ruIZYddhk
As it turn out, humans and fish may have a lot more in common than we think. Shubin, who wrote a book called “Your Inner Fish”, believes that human ears evolved from fish gills. Fascinating, isn’t it?
Science? hOW stUpiD IS thAt?