Darwin can be made to justify anything
This kind of 'scholarship', if it can be called that, falls under the title of evolutionary psychology, wherein everything about humanity is animalised to fit in with the evolutionary creation myth.
It is common now to Darwinise every statement about what and who we are, it is common, but unscientific. As a critic of evolutionary theory, all Fiona's article does is to state an obvious fact both parents (opposite sexes) are important for children and then mention it as part of an evolutionary story.
