People can spend their lives looking for love. We go on awkward dates and let our friends set us up with complete strangers. All in the hope of finding 'the one'.
But what’s the point of it all? Why do we bother? If all we’re supposed to do is continue our species surely we’re better off just picking someone half-decent and making do.
Now scientists in Germany have found that, for zebra finches at least, there is a point to love...