New York's Central Park has a statue dedicated to him, and there's even been a movie about him: a sled dog named Balto. Now he is the focus of a DNA study, 90 years after he died, to see what made ...

Balto, seen in the early 1920s, led a sled-dog team that brought lifesaving medicine to Nome, Alaska. Photo: Associated Press. DNA from the legendary husky whose achievements in part inspired the ...