Some species of apes rub pheromone-containing urine on the feet of potential mates to attract them. Some scientists believe that female insects and mammals send chemical signals that help their mates distinguish species.
The perfume industry has capitalized on pheromones as a means to increase one's sexual attractiveness to the opposite sex. People hunt animals, such as the whale and the musk deer, for these chemicals.
Lately, scientists are looking into the existence of human pheromones and its role in mate selection. There are many conflicting views in the realms of biology, chemistry, genetics, and psychology. Most scientists would assert that these chemicals do not exist, or if these indeed exist, these chemicals do not play a role in sexual attraction between a man and a woman.
However, Swiss researchers from the University of Bern, led by Klaus Wedekind, are making scientists rethink their stand. The experiment involved women sniffing cotton shirts of different men during their ovulation period.
The study showed that women prefer the smell of shirts of men who shared similarities with the women's genes. Like the case of insects and other mammals, this was to ensure healthier characteristics for their future children.
The said researchers cautioned that preference for male odor is also affected by women's ovulation period, the food that men eat, perfumes and other scented body products, and the use of contraceptive pills.
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