I'm sorry, run that one past me again.
That's right, certain Australian beetles will try to copulate with discarded beer bottles, but they have to be of the right type - brown ones with bobbly bits on them.
This fascinating observation made almost 30 years ago has finally landed entomologists Darryl Gwynne and David Rentz with an Ig Nobel Prize.
The Igs are the "alternative" version to the rather more sober Nobel awards announced in Sweden next week.
Other recipients this year of the prizes run by the science humour magazine Annals of Improbable Research included the mayor of Vilnius in Lithuania, Arturas Zuokas.
He was honoured with the Ig Peace Prize for demonstrating that the problem of illegally parked luxury cars could be solved by squashing them with an armoured tank.
The Chemistry Prize went to an inventive Japanese team that worked out how to use wasabi (pungent horseradish) in a fire alarm system. The group even has a patent pending on its idea.
Understanding why discus throwers get dizzy was the topic of the study that won the Physics Prize.
The American awards were handed out on Thursday at Harvard University's Sanders Theatre, in what has become down the years a slightly chaotic but fun event where people throw paper planes and a little girl berates the winners.
Read on...
By Jonathan Amos Science correspondent, BBC News
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