Is the girl of your dreams playing hard to get? Well, don't panic, for there's a possibility that she's testing how helpful you will be in bringing up a child, at least that's what a new study says.

The study by a team of biologists and mathematicians at the University of Bristol, found that women in general play hard to get in order to determine how helpful a potential mate will be in raising a child.
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The researchers worked out the theory from extensive studies of mating birds.