Sido was a little tan-and-white dog, mixed-breed, pretty, charming and devoted to her owner. Not that different, maybe, from the dog lying at your feet while you read this. You may not recognize her ...

Of all the memorable dogs in history -- Balto, Lassie -- there's one canine many may not remember, but whose tale is worthy of recognition. It was 35 years ago this week that Sido, an 11-year-old part ...