Quasi Modo, a 10-year-old mutt whose spinal birth defects left him with a hunchback, is the winner of this year’s World’s Ugliest Dog Contest Friday night. The pit bull-Dutch shepherd mix and his owner took the $1,500 prize, besting 25 other dogs competing in the contest that applauds imperfection, organizers said. Before becoming a champion, Quasi Modo was abandoned at an animal shelter before being adopted by a veterinarian in Loxahatchee, Florida, according to the dog’s biography posted on the contest’s website.