The call of the wild was a story about a dog.
Just like that “sleeping in the comfortable hole but have the bad dreams” Buck was not a complete wild dog. He also had the kindness and the royalty. He had ever jumped in the river to save his master. After all, Buck’s ancestor was the wolf. After his master dead, he went to the forest to close to the nature.
Please, please do not let come true while we are still able to answer the call of the wild.