Yes, it could be a spandrel. see the classic (and controversial) paper by Gould and Lewontin: Gould, SJ and Lewontin RC. 1979. The Spandrels of San Marco and

Yes, it could be a spandrel. see the classic (and controversial) paper by Gould and Lewontin: Gould, SJ and Lewontin RC. 1979. The Spandrels of San Marco and the Panglossian Paradigm: A Critique of the Adaptationist Programme. Proc. R. Soc. Lond. B 205(1161): 581-598 http://rspb.royalsocietypublishing.org/content/205/1161/581.abstract http://rspb.royalsocietypublishing.org/content/205/1161/581....