Meet the 1st Truly Monogamous Monkey

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Photo: C. Valeggia/Owl Monkey Project, Formosa-ArgentinaA new study reveals Azara’s owl monkeys are a rarity in the animal kingdom: truly monogamous mammals. A genetic analysis of 35 offspring born to 17 pairs of owl monkeys turned up no evidence of philandering; the monkeys that cared for the young were their biological parents.Read more here: Who's Your Daddy? Owl Monkeys Know For Sure.

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