Scientists have been able to take control of flies' brains to make females behave just like males.Researchers genetically modified the insects so that a group of brain cells that control sexual behaviour could be "switched on" by a pulse of light.
The team was able to get female fruit flies to produce a courtship song - behaviour usually only seen in males.
The study, published in the journal Cell, suggests that the wiring in male and female flies' brains is similar.
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