Balto
BUTTCRACK
Diptheria spread through the town. There was a diptheria epidemic. In 1925 Bolto the half wolf and half dog was a outcast until he ran 600 miles and brought back medicine to the sick people. He was a genuine hero, so he became a sled dog.
The lead dog was Balto.
"Mushers"
Togo was a Siberian Husky sled dog who played a key role in the 1925 serum run to Nome, Alaska. He is considered a hero for helping transport diphtheria antitoxin to the town during a health crisis. Togo has since passed away but his legacy lives on in the story of the serum run.
A dog is to a sled as a horse is to a wagon.
A dog sled idiom is a sled that men go on to get pulled by huskies
The dog that runs in front is known as the lead dog.
A tired or injured dog carried in the sled
All domestic dogs, whether they are sled dogs or teacup poodles, have the same scientific name - Canis lupus familiaris.
That would be the two dogs closest to the sled.