Birds aren’t the only animals that use their impressive vocal abilities to attract mates—crickets and frogs and humpback whales put their singing talents to similar use, too. Now Duke University researchers have discovered how male mice woo ladies with their high (frequency) notes, too. Whether mouse song is as delightful as birdsong is still a matter of debate—and maybe a moot point, as well, since mouse singing is inaudible to the human ear. In any case, here’s a breakdown of some of the similarities and differences between the two vocalists. Birds are well known for their singing skills. Mice . . . are not. For thousands of years birds have been much celebrated for their musical gifts. In the Odyssey, the Sirens, whose songs lured sailors to their deaths, were half-bird, half-woman. But it wasn’t until 1925 that scientists began to really look into mouse song. That year, after hearing a mouse chirp, a Detroit resident captured and delivered it to a lab at the...