A minuscule cow with a taste for contemporary music has been named the world's smallest by the Guinness World Records book.
Swallow is a Dexter cow, an Irish breed known for its diminutive stature, but is small even by Dexter standards.
She already has nine regular-sized calves and is pregnant with her 10th. Guinness said her youngest calf has already grown larger than she is.
Guinness World Records 2011 was published Thursday in the U.K.