The first team to set out was led by a dog named Togo. Togo was a small, black and white husky who had spent most of his life pulling sleds. When he was a puppy, his owner, Leonhard Seppala, never thought he would be a good sled dog. Togo was smaller than most dogs on the team. He was ill when he was very young, and at six months old, he was given away to be a house pet. Togo did not last long as a pet. He escaped several times to return to the sled dog kennels. He ran after the team every day on their training runs, and eventually, he was given a chance to run in harness. He had found his purpose. Read the excerpt of Article B.

The sled dogs needed to have long, warm coats. They had to be fast and able to run for long distances while pulling a heavy load. Most importantly, they had to work together as a team. This made northern dogs, such as Siberian huskies and Alaskan malamutes, the best choices for the sled teams. These dogs have long coats, with a double layer of fur to keep out the cold, and wide paws with webbed toes that act like snowshoes. They have been bred for more than 9,000 years to be working dogs in extreme winter weather. They are friendly, team-oriented, and purposeful dogs. In the days of the arctic explorers, the physical features and determined personalities of the sled dogs made long journeys in harsh conditions possible.

What physical qualities make a good sled dog? Use both texts to determine the answer.

A sled dog needs to have large ears and a white coat to blend into the snow and ice.
A sled dog needs to eat quickly, have a coat that does not shed, and be a good swimmer.
A sled dog needs to be strong and have excellent vision to see in the dark of night.
A sled dog needs to have a warm coat and wide paws, as well as be strong and a fast runner.

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