The link between man and monkey just gets stronger

Research at Duke University in North Carolina has concluded that male rhesus monkeys will 'pay' to view images of female monkeys on PC screens. From the Observer today:

(Researchers) gave male macaques the choice of looking at images on a computer screen of either a female's posterior or of a socially-dominant monkey. They found that the monkeys would take a cut in their fruit juice allowance for glimpses of either alluring vision.

Now if that doesn't prove the link between humans and monkeys, what does?