Kazatsky (also spelled kazatski and kazatska) is the popular, vigorous Russian folk dance performed by a man. It is characterized by a step in which, from a squatting position, each leg is alternately kicked out. Do you pick a mate based on scent? Without realizing it, you very well may -- A Swiss study found that a majority of women unconsciously choose mates with a body odor that differs from their own natural scents, which, as a result, ensures better immune protection for their children. "Longevity" magazine reported that the genes that battle disease-provoking substances also influence body odor.