Permiscuous Voles

I read this BBC article recently where in the light of recent womanizing celebrity scandals a group of British scientists decided to see if it was genetic. For the study they mapped the genome of two closely related species of Vole. One species mates for life, the other tends to get as much as it can from wherever it can. They identified a set of genes that control the Voles breeding habits. They found that if they bred the womanizing Voles with this one gene they became well behaved "married" Voles and vice versus for the other species of Voles. Apparently it is this same gene that controls our ability to be faithful. It is also typically faulty in males which explains why men most commonly cheat. It also dispels the notion that love is a higher emotion experienced only by humans.