Under-bite helps Pabst become World’s Ugliest Dog (AP)

Pabst competes in the World's Ugliest Dog Contest at the Sonoma-Marin Fair on Friday, June 26, 2009, in Petaluma, Calif. The toothy 4-year-old Boxer mix won top honors. (AP Photo/Noah Berger)AP – A prominent under-bite, scrunched face and floppy ears are the hallmarks of a winner.