Marks and Nesse investigated evolutionary causes of anxiety disorders and reported about embarrassment in particular:
Social threats evoke responses that promote group acceptance, for
example, submission to dominants and to norms of dress, mien, odor,
speech, customs, beliefs. This prevents dangerous extrusion from the
group. Mild shyness and ...
First, it must be understood that not all traits in an animal are evolved or selected traits – some are only variations. Some of these variations may be selected by some evolutionary pressure in the future and then become evolved or selected traits.
For example, each of the various hair colors (black, brown, blond, red, white, etc.) is not an evolved or ...