The third eye might be a form of teratoma - a rare type of tumor, sometimes malignant, that can contain malformed teeth, hair, bone and other body parts. Cell replication run amok can do strange things.
The third eye is a common metaphor for the door of perception that is opened (supposedly) by some forms of meditation. I could swear I once read a science fiction story that involved aliens who looked just like us except for a third eye in the middle of their forehead. Normally closed, its lid blended seamlessly with the skin, so these aliens couldn't be identified unless they opened it. When they did, it spelled trouble. Darned if I can find it now. Maybe I only imagined it, or maybe I read it with my third eye.
The third eye might be a form of teratoma - a rare type of tumor, sometimes malignant, that can contain malformed teeth, hair, bone and other body parts. Cell replication run amok can do strange things.
That's a reasonable explanation. I've seen the teeth and bone version but never a whole eye before.
The third eye is a common metaphor for the door of perception that is opened (supposedly) by some forms of meditation. I could swear I once read a science fiction story that involved aliens who looked just like us except for a third eye in the middle of their forehead. Normally closed, its lid blended seamlessly with the skin, so these aliens couldn't be identified unless they opened it. When they did, it spelled trouble. Darned if I can find it now. Maybe I only imagined it, or maybe I read it with my third eye.
A third eye in a Welsh cow, and some musings on evolutionary possibilities: https://medium.com/@Naturalish/the-eyes-have-it-why-nature-sometimes-stops-at-just-two-a6a51283b176
I think I remember this. It's so weird. But the extra eye on the deer farther down in the skull was even weirder.