Will this do?

An early contender for “Most Feeble Evolutionary Psychology Claim of 2010” here…

Pretty women 'anger more easily'

...The University of California interviewed 156 female students to gauge their temperament and how they handled conflict.

...In the study, the women who believed they were good looking were more likely to respond angrily in disputes than those who rated themselves as less attractive.
Attractive women also had higher expectations of what they deserved.

...The researchers believe the findings have an evolutionary basis, ensuring that the "fittest" people mate and have offspring.