Buck and Spitz are fighting to the death because they are trying to prove who is top dog in the pack. The fight is caused by when Spitz kills the rabbit that buck was trying to kill and when Spitz killed the rabbit it made buck mad so they started to fight to the death.
buck learns how to burrow under the ground and keep warm in the winter
this paragraph shows Francois and Perrualt camping and adapting to the cold weather in the winter and keeping warm by the fire.buck also learns how to adapt into the cold of the winter and spitz does to.once the weather starts to get warmer they all have to adapt to the warm weather and cold nights because they are only used to the winter so now they have to adaot into the warm weather.
buck had found his wild brother and his pack then he joins the pack
Francois had killed dolly because while they were getting her ready to pull the sled she let out a long howl and ran after buck chasing him around and around until Francois grabbed an Axe and swung it down on Dollys head once buck had passed by Francois and stopped scared. once they had finished getting all the dogs ready to pull the sled they just left and Dolly was laying there on the snow dead.
On the first couple nights after buck was stolen he was frezzeing cold cause of the cold weather and all the other dogs made burrows under the snow to keep warm. buck wondered where they all were and when he was walking around trying to find them her stepped on a dog and he learns how to burrow under the snow and he does keeping himself warm during the cold winter.
when buck found out that all he sled dogs and the three people had died he was running around and he heard growls and howls coming from wolves and he had found his wild brother that he had ran alongside that one night and he became apart of their pack and over the years people saw change in the wild wolves coats as they were part of bucks pups.
Curly had died from when she hadnt adapted to the place around her and she walked up to a pack of wild wolves all friendly like not knowing what was going to happen and when she does the wolves attack her and when she does get attacked she fell down and was killed. Buck learned from that fight to never fall down because once you do you fall down and fail.