這些版本僅有英文內容，不含繁體中文翻譯。
野性的呼喚
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巴克是一隻強壯的狗，原本在加州一座莊園裡過著舒適生活，卻遭人綁架並運往遙遠北方，以滿足克朗代克淘金熱期間對雪橇犬的大量需求。被丟進殘酷主人與半野性犬伴之間後，牠很快學會棍棒與獠牙的法則，在飢餓、精疲力竭及爭奪支配地位的野蠻惡鬥中活了下來。隨著牠熟練掌握雪橇路線，古老的本能也在體內甦醒，將牠拉向荒野的自由。溫厚的淘金客約翰・桑頓一度贏得牠熾烈的忠誠，在殘酷之中給予牠溫暖。然而悲劇降臨時，牠與文明世界的最後一道羈絆也隨之斷裂。巴克回應那道再也無法否認的祖先呼喚，徹底而永久地離開人類世界，投身荒野。
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原文 EN
“‘Answers to the name of Buck,’” the man soliloquized, quoting from the saloon-keeper’s letter which had announced the consignment of the crate and contents. “Well, Buck, my boy,” he went on in a genial voice, “we’ve had our little ruction, and the best thing we can do is to let it go at that. You’ve learned your place, and I know mine. Be a good dog and all ’ll go well and the goose hang high. Be a bad dog, and I’ll whale the stuffin’ outa you. Understand?” As he spoke he fearlessly patted the head he had so mercilessly pounded, and though Buck’s hair involuntarily bristled at touch of the hand, he endured it without protest. When the man brought him water he drank eagerly, and later bolted a generous meal of raw meat, chunk by chunk, from the man’s hand.