
Scientists studying voles (mouse-like rodents) discovered that transferring a single gene, the vasopressin receptor, from the monogamous prairie vole into the brain's reward centre of a promiscuous meadow vole, would cause that meadow vole to become monogamous.
CLICK HERE to learn how that applies to huMEN! - and where to get "Vasopressin" for the man you love! [ just kidding! ]