Sometimes an animal's beauty may signify caution against some poisonous consequences of this or that variety.
But, as the Polish newsmagazine Polityka recently asked, how has it happened that in humans, all of this developed in reverse?
Scientists have come up with the following answer. The evolution of our intellect has led to an increase in the size of our brain and the skull that protects it, which, in its turn, has led to complications in childbearing. Labor and prolonged child-rearing demanded more of a mother’s attention, thus forcing her to require more of her mate.
This is where human evolution made a sharp turn, bringing the desirability of men into focus. As women developed a need for a reliable partner, the partner got the option to choose.
Researchers found that attractive women have more children than their less attractive counterparts, and that a higher proportion of those children are female.
Once those daughters grow up, they tend to be good looking themselves, and so the pattern is repeated as women become steadily more visually pleasing over the generations.