Did we actually evolve to develop an extra sense, that of being watched? How? Why?

Question

Specifically speaking, the feeling of being watched or observed by a concealed being. We all know the feeling... the crawling of our skin, the hairs on our neck standing up, the chills -- is it just us being paranoid, or somewhere along the line did we develop this "sixth sense" to keep us safe?

Could we "feel" they unfriendly eyes of an enemy or predator actually on us, or are we just overly cautious and that fear ends up keeping us safe, even if it's unfounded.

Answer 1

i think we have become so used to a certain behavior from humans that when ever someone does differently, like watching someone else... We notice it, whether it be them becoming quite, distant, or just seeing it out of the corner of our eye.

Answer 2

No.  No such sense exists.