在英国的侏罗纪海岸，发现了一个值得注意的2亿年前的化石 - 鱼龙的骨头，一条巨大的海龙。 大卫·爱登堡爵士参加了研究活动，将这个古老生物的故事重新展现在世人面前。 团队使用最先进的成像技术，重塑鱼龙骨骼并制作有史以来最逼真的鱼龙动画。 一路上，这支队伍陷入了一个2亿年前的谋杀案之谜，只有经过艰苦的调查，才能揭开这种非同寻常的生物背后的命运故事。

David Attenborough follows the remarkable story of the discovery of fossils in the Patagonia region of Argentina which prove to belong to the largest animal to ever walk the Earth.

David Attenborough investigates the remarkable life and death of Jumbo the elephant - a celebrity animal superstar whose story is said to have inspired the movie Dumbo. 　　Attenborough joins a team of scientists and conservationists to unravel the complex and mysterious story of this large African elephant - an elephant many believed to be the biggest in the world. With unique access to Jumbo's skeleton at the American Museum of Natural History, the team work together to separate myth from reality. How big was Jumbo really? How was he treated in captivity? And how did he die? Jumbo's bones may offer vital clues. 　　Arriving in London Zoo in 1865, Jumbo fast became a firm favourite of Queen Victoria and her children, and was nicknamed the Children's Pet. Yet behind the scenes, this gentle giant was living a double life - smashing his den, breaking his tusks and being pacified by large amounts of alcohol given to him by his keeper, Matthew Scott. Scott had no human friends but had a deep empathy for animals, developing a particularly strong and near mystical bond with Jumbo. 　　Then, quite suddenly, London Zoo caused public outrage by selling Jumbo to PT Barnum's circus in America where he travelled with his devoted keeper to start a new life. But while his time in America turned him into star with 20 million people coming to see him, his life ended tragically and 　　mysteriously. 　　As well as Jumbo's skeleton, Attenborough explores the lives of wild elephants to explain Jumbo's troubled mind, and he discovers how our attitude to captive elephants has changed dramatically in recent years.

1961年的一个炎热夏日，正在拍摄《动物园探索》的大卫•阿滕伯勒从一名马达加斯加当地男孩手中，接过了一些巨大的蛋壳碎片。这些碎片是男孩在覆盖着沙粒的河床上发现的，它们属于世界上最大的鸟类——已经灭绝的重达半吨的象鸟。自从大卫在马达加斯加拍摄完《动物园探索》后，这里就发生了巨大的变化：80%的雨林遭到破坏，而人口却激增了四倍，当地特有的50多种哺乳动物在灭绝的边缘挣扎。阿滕伯勒珍贵的蛋壳碎片能解释远古象鸟的消失之谜吗？我们能从象鸟的命运中领悟到拯救马达加斯加野生动物的方法吗？

大卫艾登堡分享他毕生所学，揭开地球最壮丽水下栖息地的面纱，向我们展示人类正身处最伟大的海洋探索时代，并强调其重要性。在揭露海洋面临的最大挑战时，艾登堡传达了一个充满希望的讯息：以前所未有的规模复原海洋生态并非遥不可及。

1961年的一个炎热夏日，正在拍摄《动物园探索》的大卫•阿滕伯勒从一名马达加斯加当地男孩手中，接过了一些巨大的蛋壳碎片。这些碎片是男孩在覆盖着沙粒的河床上发现的，它们属于世界上最大的鸟类——已经灭绝的重达半吨的象鸟。自从大卫在马达加斯加拍摄完《动物园探索》后，这里就发生了巨大的变化：80%的雨林遭到破坏，而人口却激增了四倍，当地特有的50多种哺乳动物在灭绝的边缘挣扎。阿滕伯勒珍贵的蛋壳碎片能解释远古象鸟的消失之谜吗？我们能从象鸟的命运中领悟到拯救马达加斯加野生动物的方法吗？

David Attenborough is in the Swiss Jura Mountains to discover the secrets of a giant. Beneath his feet lies a vast network of tunnels and chambers, home to a huge empire of ants. It is believed to be one of the largest animal societies in the world, where over a billion ants from rival colonies live in peace. Their harmonious existence breaks many of the rules for both ants and evolution, and raises some important questions. Through winter, spring and into summer, David turns detective to find the answers.

一个早晨，一位化石爱好者在英国的“侏罗纪海岸”散步时偶然发现了一块化石，事实上这是一块上龙口鼻部前端的化石，并将成为一项意义重大的发现。得知消息之后，著名化石专家史蒂夫·埃切斯博士来到了现场，并猜测上龙骨骼的其余部分仍然隐藏在悬崖中。于是，他立即组织了一个挖掘团队，并依靠绳索在崖面上对这个化石展开了挖掘。经过一番努力取下化石之后，史蒂夫开始清理包裹颅骨化石的岩石。与此同时，研究人员也开始利用先进的X光扫描仪对化石进行扫描，并用扫描图像构建了直观的模型。通过对模型进行分析，研究人员发现这是一种和所有已知的上龙都不同的新物种。这种上龙，体长可达12米，并长有19颗像匕首一样锋利的牙齿，他的咬合力是现存咬合力最强的动物——湾鳄的两倍，甚至霸王龙都无法与之抗衡。

David Attenborough chooses his ten favourite animals that he would most like to save from extinction. From the weird to the wonderful, he picks fabulous and unusual creatures that he would like to put in his 'ark', including unexpected and little-known animals such as the olm, the solenodon and the quoll. He shows why they are so important and shares the ingenious work of biologists across the world who are helping to keep them alive.

大卫·爱登堡爵士将深入地探寻和研究人类历史上最著名的大象Jumbo, 无数著名的书籍和电影的创作灵感都来自于Jumbo，其中最出名的就是迪士尼的小飞象（Dumbo）。这部纪录片主要围绕近两个世纪以来人类对于这类动物的研究取得了多么巨大的进步，通过对Jumbo的骨骼标本的研究，来试图还原它曾经生活的环境和它传奇的一生以及其神秘而悲剧的死亡。