Why do some men stray from their marriages, while others seem content to stay with one partner for life?
The answer may come from an unlikely source: the vole. A vole is a rodent, and it comes in several species. Prairie voles mate for life. Mountain voles do not. Research has shown that prairie and mountain voles have different versions, known as “alleles,” of a particular gene (AVPR1A). Read more about Help, My Husband is a Rodent!