**消失的巨兽**（英語：）是一个由BBC制作，于2003年在動物星球頻道首播的纪录片（在动物星球播出时以**Land of Lost Monsters**为片名）。紀錄片中也包括來自同樣由BBC製作的与古兽同行、与远古人同行（英语：）片段。節目透過電腦成像還原最後一次冰河期的巨型動物群生態，並描述早期人類與牠們的遭遇，也將人類描述為這些巨型動物的滅絕主因。

分集
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### 第一集：永恒的边境（北美加拿大，1万1千年前）

已隱藏部分未翻譯内容，歡迎參與翻譯。
It starts with animals living during the Ice Age. It also shows how humans became top predators and started hunting mammoths on the continent with deadly spears. We also had to compete with other predators like the Short-faced Bear and the Saber-toothed cats. We destroyed them by depleting their food supply, and making them starve to death. Later after realizing what they done to the great beast's demise they hunted not all the time and then there were no more extinctions in the Americas. That wasn't until pioneers from Europe like 克里斯托弗·哥伦布, several 征服者 and lots of horses were brought by the Conquistadors arrived in North America. Howevever horses are returning to the land of which they evolved in. Also inventing the gun, which in North America, was used primarily for hunting big game animals like the bison. By 1893 only 500 wild buffalo remained, marking the end of the megafauna in the Americas.

注：此集中的大部分动物模型来自BBC的另一部纪录片野性新世界（英语：）。

* 真猛獁象
* 美洲擬獅
* 似剑齿虎
* 斯剑虎
* 副磨齒獸
* 擬駝
* 巨型短面熊
* 美洲乳齒象
* 西伯利亞野牛
* 哈格曼马（英语：）
* 北美獵豹
* 狼
* 美洲野牛
* 野马
* 马
* 安地斯神鷹
* 棕熊
* 麝牛
* 驯鹿
* 高鼻羚羊
* 加州神鷲
* 白大角羊
* 乌鸦
* 白頭海鵰
* 貂熊
* 白靴兔
* 白尾鹿
* 雪鴞
* 紅鮭

### 第二集：燃烧（澳洲，6万5千年前）

本集展示的是人类是怎样进入澳洲（英语：）。 

已隱藏部分未翻譯内容，歡迎參與翻譯。We also hunted the native wildlife. We encountered the huge birds and the giant lizard, megalania. The reptiles kill two humans and they plan on burning the fields and vined forests to kill the giant lizard and other beasts to extinction. We then start to colonize other lands in the New World. While after burning the forests
most of the animal species survived the forest fires, also this changed the habitat of Australia as it is today. Marsupials, small lizards, birds and other animals are doing well than their counterparts who all died in the fire.

* 牛顿巨鸟
* 双门齿兽
* 古巨蜥
* 灣鱷
* 紅大袋鼠
* 鸸鹋
* 眼斑巨蜥
* 傘蜥蜴
* 棕树凤头鹦鹉
* 擬眼鏡蛇
* 編織蟻

### 第三集：告别伊甸园（新西兰，约公元1280年）

已隱藏部分未翻譯内容，歡迎參與翻譯。
It starts with humans populating New Zealand. We encounter the giant moa. We start to see it was harmless. We then discover Haast's eagle, which hunts moas and starts to target us. We then start to steal the moa's giant eggs and go after the adults for food. We then realize we brought a huge amount of animals to extinction. The program has a part with footage of most of the animals shown in the series and starts to ask the question that if we can't live with these monsters, are we not monsters ourselves. The program then ends on *復活節島* about the aftermath of New Zealand's old world with the giant birds gone and forests as so did the early settlers of New Zealand.

注：此集中的许多画面来自先前的两部纪录片與獸同行和野性新世界（英语：）。

* 恐鸟
* 哈斯特鷹
* 寬吻海豚
* 抹香鲸
* 新西兰海狮
* 鷗
* 红尾黑凤头鹦鹉
* 斯岛黄眉企鹅
* 鸮鹦鹉
* 长鬚无翅大蝗（英语：）
* 北島褐奇異鳥
* 喙頭蜥
* 波利尼西亚鼠
* 犬
* 苏门答腊犀牛
* 大家鼠

相关纪录片
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* *古世界（英语：）*
* *恐龙星球*
* *恐龙紀元*

"消失的巨獸"是BBC系列纪录片的一部分，其中还包括:

* 与恐龙共舞（1999年）
* 与野獸共舞（2001年），描绘恐龙之后的生命。
* *与遠古人共舞（英语：）* (2003)
* 与巨兽共舞（2005年），描绘恐龙之前的生命。

下面是"与…同行"系列:

* *"異特龍之謎"（英语：）* (2000)
* *"與恐龙共舞特別篇"（英语：）* (2002)
* 海底霸王（2003年）

与之内容类似的纪录片，也是由BBC出品：

* 野性新世界（英语：）（2002年）

外部链接
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* BBC official website （页面存档备份，存于）
* Animal Planets Official website （页面存档备份，存于）