While modern sled dogs undoubtedly have some wolf ancestry, as do all dogs, there are probably few if any actual hybrids (half wolf, half dog) that are used to pull sleds. A harness dog must look to humans for direction in order to do its job successfully, while a wolf completely disassociates itself from people. Also, wolf hybrids tend to be more aggressive and less submissive than most domestic canines.
A group of sled dogs is called a "Team" of sled dogs.
No - they are domesticated dogs, like any other pet dog. Wolves, on the other hand, are wild animals. Any mix of a wolf and a domesticated dog will usually display the behaviors of the wolf (shy, easily spooked, not good with people, etc.) and should be avoided. It is illegal to keep them in many parts of the U.S. While Huskies (most dogs used for sled dog racing are Huskies) may have coats that make them look like wolves, they are not any more closely related to a wolf than any other domesticated dog. A good history of sled dogs is at http://www.seppalasleddogs.com Interestingly, some people use other breeds as sled dogs - it's just that Huskies are the ones best suited to long-distance, fast sled pulling!
there would be 7 dogs on a sled
Strong is hard to define. I would say the Husky. Or sled dogs. Do you now how strong a dog has to be to pull a 500lb sled thousands of miles across a frozen wilderness?
Sled dogs do not lose confidence, infac it can help
They tend to live in there sled packs that they pull the sled in
People steal sled dogs so that they can make money by using those dogs in races.
Sled dogs were removed from Antarctica because they are disturbing Antarctica's wildlife.
sled dogs can Cary about two or three people in races
Snowmobiles replaced sled dogs as a form of transportation in remote northern areas.
The number of sled dogs needed to pull a sled depends on various factors such as the weight of the load, terrain, and weather conditions. Typically, a team of 4 to 12 sled dogs is used for pulling a sled in races or expeditions.
There is a Lead Dog(s) Then Swing Dogs Then Usually Three Rows of Team Dogs Then The Wheel Dogs Then the Sled and You!