In the “Call of the Wild” by Jack London, Buck uses his abilities and instincts to adapt and survive in the harsh Yukon environment. At first, he is taken into the wild where he faces a daunting task of developing physical strength to pull sleds in the Yukon. Later, the dog gains knowledge by watching the others and learning new techniques that help him survive. In the end, the beast fully changes into a primordial killer that regains his ancestral traits to fight for survival. Buck changes from a spoiled pet to a dominant animal and grows use to his new environment. In the beginning, the main character has no choice but to survive in the Yukon and becomes tougher to do his job. After his kidnapping, he becomes a member of a sled team traveling to the Yukon. More dogs are brought onto the team, and they all fight for survival. The protagonist has to change and adapt to this new environment and get strength to pull the sled. “His development (or retrogression) was rapid. His muscles became hard as iron, and he grew callous to all ordinary pain. He achieved an internal as well as external economy. He could eat anything … and his blood carried it to the farthest reaches of his body, building it into the toughest and stoutest of tissues.” (24) After he is brought into the Yukon, the dog has to do hard, physical labor in pulling sleds. He becomes stronger and grows more muscles and can ignore most pain. Since he also has to change his diet, the beast no longer is well sated, but he competes with other hounds for food. He does not get much food, so he has to eat everything he is given to stay alive. From his physical development, the half St. Bernard is preeminently smarter, stronger, and quicker than most of the others. If dogs are not able to become stronger and more powerful, they become easy prey for enemies to obliterate. In conclusion, the Yukon environment is different from his old home, so he has to adapt and change his methods to survive. Later, from observing the actions of his peers, the dog is able to find new techniques. As days have gone by, the half Scotch Shepherd experiences a new concept of how to pull sleds. During their rest break, a savage wolf pack attacks the dogs and rend Curly’s skin and flesh until she is dead. More strays are bought to pull the sled, and the hero gains comprehension from them. At night, they eat and sleep to prepare for the day ahead of them. ” A dainty eater, he found that his mates, finishing first, robbed him of his unfinished rations … When he saw Pike, one of the new dogs, a clever malingerer and thief, slyly steal a piece of bacon … he duplicated the performance the following day, getting away with the whole chunk.” (23) Since they are short on supplies, the pups steal from each other because they are hungry for more. When the protagonist tries to defend and protect his food, more try to fight him. In the hostile Northland , they have to change their living conditions like stealing for survival. The leading dog does not pillage for fun but to stay alive. He covertly steals to avoid punishment from his masters. Not only does the creature master getting more food, he also notices how to stay warm by digging a hole and sleeping under objects during the cold winter. In conclusion, learning from more mature dogs helps adjusting to the unfriendly Yukon easier. In the end, using his hereditary traits, the main character becomes a dominant leader over the others. Even though he has only been living in the Yukon environment for only several weeks, the protagonist can feel himself beginning to change. During the night, he thinks about his old ancestors and other generations before him. The fighter is starting to evolve and regain old traits from these ancestors. “And not only did he earn by experience, but instincts long dead became alive again … In vague ways, he remembered back to the youth of the breed, to the time wild dogs ranged in packs through the primeval forest and killed their meat as they ran it down. It was no task for him to learn to fight with cut and slash and the quick wolf snap.” (25)  He is becoming less of a pet dogs and more of a rampant beast. The barbaric animal remembers his ancestors traveling through the forest and looking for food. At night, the fiend howls like a wolf which is a characteristic of his ancients ancestors. Later, the lead has dreams of a hairy old man sleeping and hunting near a fire. He also hears noises from the forest made by other ferocious wolves. After hearing the sounding, he runs into the forest and stays away from mankind and John Thornton for several weeks. The savage is becoming vicious after he hears the call, and once his master, John Thornton, dies, he joins the native wolf pack. To sum it up, learning ancestral traits helps him become a undomesticated beast in the uninhabited Yukon wilderness. Jack London’s “Call of the Wild” is about a dog who lives in the Santa Clara Valley on a mansion until his life ultimately changes. In the beginning, the main character is taken by Manuel, the gardener’s helper, and has no choice but to live in the harsh Yukon environment. To continue, Buck has to alter his lifestyle by pulling sleds and learning from more skillful dogs. After the death of John Thornton, his master, the fiend resolutely becomes a prehistoric killer after joining a pack of savage wolves. In the end, he adjusts his life to his new environment and changes from a callow pet dog to a primitive creature.