Fetch this delightful "Nova" program if you want to learn all about the evolution of "man's best friend." Touring an Indiana research facility dedicated to the study of wolves and visiting a dog show in New York where the finest breeds go tail to tail in competition, the program offers an enlightening overview of canine facts and trivia. Bow-wow, are these four-legged folks fascinating! 60 min. Widescreen (Enhanced); Soundtracks: English Dolby Digital stereo, DVS.