Blame it on their genes, but men take just a fraction of a second to judge a woman on her looks and whether she will be a potential partner or not. They weigh up potential partners based on their appearance because their "ancient" genetic preference for attractive mates leads them to, experts claim. According to research, men take a woman with an attractive face to be fertile and able to continue the family line, which appeals to the man's survival instinct. On the other hand, women take longer to decide their feelings for a man because they need to weigh up whether he will be a committed partner who will provide for them well - part of their survival programming. Professor Mark van Vugt and Dr Johanna van Hooff, from the University of Amsterdam, and postgraduate student Helen Crawford, from the University of Kent, were behind the study. They tested men and women's bias towards looks by conducting a series of tests on 20 women and 20 men, making them per...