Same-sex pairs of monogamous birds are just as attached and faithful to each other as those paired with a member of the opposite sex.
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| Pair of Male Zebra Finches |
The insight comes from a study of zebra finches - highly vocal, colourful birds that sing to their mates, a performance thought to strengthen the pair's bond.
Scientists found that same-sex pairs of finches sang to and preened each other just like heterosexual pairs.The study is reported in the journal Behavioural Ecology and Sociobiology.
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