Ladies. Dudes!

Prairie voles are monogamous and meadow voles are not. However, by injecting meadow voles with a virus that “carries” the prairie vole gene to the meadow vole’s brain, the meadow vole becomes monogamous. Ladies, take note. But vice versa — if prairie voles are given drugs that block their vasopressin receptors they become as promiscuous as their meadow cousins. Dudes! — David Byrne on Chemistry and Love