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11 animals that mate for life

Feb. 12, 2010, 11:50 a.m.
Prairie voles

Photo: Todd Ahern/Emory University/via the San Francisco Chronicle

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Prairie voles

Although most rodents have a reputation for promiscuity, prairie voles break the trend, generally forming monogamous pair bonds that occasionally last a lifetime. In fact, the prairie vole is typically cited as an animal model for monogamy in humans. They huddle and groom each other, share nesting and pup-raising responsibilities, and generally show a high level of supportive behavior.