Stories tagged biomusic

Nov
15
2005


Singing Mouse Photo

Researchers at Washington University in St. Louis have discovered that mice sing.

Scientists already knew that mice make ultrasonic sounds-squeaks that are too high-pitched for us to hear without special equipment. But these scientists used microphones and computer software to study the squeaks of 45 male mice.

What's in a song?

The researchers separated the squeaks into types of syllables based on how quickly the pitch rose or fell. The mice "sang" about 10 syllables per second. And almost all of the mice repeated sequences of syllables in clear patterns. None of the mice are Marvin Gaye, exactly, but their noises meet the scientific definition of song. (People, birds, whales, and some insects do the same thing.)

Why sing?

Researchers still have to figure out WHY the mice sing. Because the mice sang in response to pheremones-chemicals that transmit messages between animals of the same species-one guess is that male mice sing to impress females.

Hear the mice singing.