Arranged Bird Marriages Are Less Successful Than True Love

The Beatles famously taught us that love is all we need, and that’s appears to also be true for zebra finch families.

On paper, reproduction is pretty simple: Find the partner with the best genes and make lots of babies. But we humans know that there’s a lot more to finding “the one” than simply a good set of genes.

As it turns out, zebra finches too have certain tastes in a partner. And when they’re allowed to pick a mate they’re compatible with, they have more babies than when they a

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