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And I thought boy bands could get high pitched. Scientists have confirmed that, not only do male mice sing, but intreasted females sing back. That, in it of itself, is not too unusual. Most of nature signals for sex with singing. But mice have a few unique traits.

For starters, you’re not going to hear them. The pitch they sing at is just too high for human ears. And don’t hope to see mice with there mouths gaping open singing, because they don’t show any signs of when they sing. Scientists have had to make a hyper sensitive sound system to pick up on the back and forth between mice.

But these mice have nothing on Feivel: