Evolution and Evolutionary Biology - Is There a Spandrel?

Stephen J. Gould and Richard Lewenton wrote a famous paper in which they argued that evolutionary biologists had gotten carried away with themselves. Their point was, if you look at the paintings on these spandrels, it looks as if the spandrelS were there to house the paintings. But in fact, spandrel's were an architectural byproduct. And then once that byproduct existed, somebody threw these paintings there because it made it nicer.