![Butterflies close wings to avoid sex](/images/uploads/butterfliescopulation.jpg)
Butterflies close wings to avoid sex
By Victoria Gill, Science reporter, BBC Nature - Activities el Mon, May 30th 2011
In the fleeting existence of a female small copper butterfly, sex is a one-time affair. And scientists in Japan have observed that the butterflies have a simple way to avoid the unwanted attention of persistent males; they close their wings.