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[BBC系列]：愚弄世界的恐龙The Dinosaur that Fooled the World-1080P高清迅雷网盘下载
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由Dilly Barlow主持并由??BBC发行的科学纪录片，作为2002年BBC Horizo??n系列的一部分播出-英语旁白Science Documentary hosted by Dilly Barlow and published by BBC broadcasted as part of BBC Horizon series in 2002 - English narration
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1800年代中期，当查尔斯·达尔文（Charles Darwin）发表进化论时，一种动物仍然是个谜。几年后，他的朋友和同事托马斯·亨利·赫x黎（Thomas Henry Huxley）提出了答案。赫x黎最近检查了德国南部的一种新化石，称为始祖鸟，这在古生物学界引起了极大的兴奋。有明显的羽毛痕迹，很明显，这是有史以来最早发现鸟类的化石证据。赫x黎也注意到了别的东西。在他看来，骨骼似乎与一个吃食恐龙的食肉恐龙家族有着惊人的相似之处。过渡轨迹在1860年代，基于这一观察，他宣布了一种新理论。鸟类一定是从恐龙进化而来的。该理论引发了后来成为古生物学最大争议之一的问题。赫x黎可能是正确的。许多人质疑赫x黎的观测结果的准确性，并且自从寻求进一步的化石证据来证实这一理论以来，许多人都已经将其进化成像恐龙一样轻巧，光滑的东西了。一种过渡性动物，它将毫无争议地展示鸟类在一种生物中是如何从恐龙进化而来的。它已成为古生物学中缺失的重要环节之一。1999年春天，在亚利桑那州的图森宝石和化石展览会上，一位美国收藏家遇到了一种新的中国化石，它似乎只是这种过渡动物。它有鸟的头和上半身，但有恐龙的尾巴。它被称为考古学家或“古代猎人”。中国人发现在整个1990年代，中国出现了许多重要的化石，显示出恐龙与鸟类之间的明显联系。实际上，它们全都来自该国北部的辽宁地区，这是世界上最富有的化石地区之一。1.3亿年前，这里曾经是野生动植物，而火山喷发掩埋了湿地。许多化石都保存在精美的粉砂中。有些甚至附有软组织的残留物。1996年，中国科学家在这里找到了一种名为“中华龙猫”的生物，这种动物与恐龙有很多相似之处，但似乎被羽毛状的外衣所覆盖。两年后，一个中美联合小组发现了一个更加惊人的生物。像恐龙一样的动物，羽毛非常清晰，他们称之为Caudipteryx。随后出现了其他类似的羽毛恐龙，包括1999年的一个重要标本，即中华绒螯蟹（Sinirithosurus）。像羽毛一样的标记真的是羽毛的标志，还是其他东西？骨骼是真的是恐龙的骨骼，还是实际上是尚未发现的新鸟类的骨骼？仍然缺少的证据可以使每个人都满意。两全其美新的始祖鸟化石似乎也来自中国辽宁地区。在这里，一只动物具有独特的恐龙和鸟类特征。它有一只鸟的头骨和上半身，但是恐龙的牙齿和手。它也有鸟的腿，但有恐龙的尾巴。一世In the mid 1800s, when Charles Darwin published his theory of evolution, one species of animal remained a mystery; where did birds fit on his evolutionary tree?Several years later his friend and colleague, Thomas Henry Huxley, came up with an answer. Huxley had recently examined a new fossil from southern Germany called Archaeopteryx which was causing considerable excitement in palaeontological circles. There were clear signs of feathers and it was obvious this was the earliest fossil evidence of a bird ever found. Huxley noticed something else as well. To him it looked as though the skeleton bore a striking similarity to that of a family of meat eating dinosaurs known as therapods. Transitional trail In the 1860s, on the basis of this observation, he announced a new theory; birds must have evolved from dinosaurs. The theory ignited what was to become one of the biggest controversies in palaeontology. Could Huxley possibly be right; how could a large, land-bound creature like a dinosaur have ever evolved into something as light and sleek as a bird?Many questioned the accuracy of Huxley's observations and ever since there has been a search for further fossil evidence to confirm the theory; a transitional animal which would incontrovertibly show how, in one creature, birds had evolved from dinosaurs. It has become one of the big missing links in palaeontology.In Spring 1999, at the Tucson Gem and Fossil Fair in Arizona, an American collector came across a new Chinese fossil which seemed to be just this transitional animal. It had the head and upper body of a bird but the tail of a dinosaur. It was called Archaeoraptor or 'ancient hunter'.Chinese finds Throughout the 1990s a number of important fossils emerged from China showing an apparent relationship between dinosaurs and birds. Practically all come from a region in the north of the country called Liaoning, one of the richest fossil areas in the world. Here, 130 million years ago, volcanic eruptions buried a wetland once teeming in wildlife. Many of the fossils have been magnificently preserved in the fine silt; some even have the remains of soft tissue attached to them. It was here, in 1996, that Chinese scientists found a creature they called Sinosauropteryx, an animal which bore many similarities to a dinosaur but appeared to have been covered in a feathery like coat. Two years later a joint Chinese/American team found an even more striking creature; a dinosaur like animal with very clear feathers which they called Caudipteryx. Other similar feathered dinosaurs followed, including in 1999, an important specimen called Sinornithosurus.Yet to those who questioned the relationship between dinosaurs and birds, these fabulous finds raised as many questions as they answered. Were the feather-like markings really signs of feathers, or were they something else? And were the skeletons really those of dinosaurs or were they, in fact, the skeletons of new, as yet unidentified, birds? What was still missing was the piece of evidence which would satisfy everybody.The best of both worlds The new Archaeoraptor fossil, also from the Liaoning region of China, seemed to be just that. Here, in one animal, was a unique range of dinosaur and bird features. It had the skull and upper body of a bird, but the teeth and hands of a dinosaur. It also had the legs of a bird but the tail of a dinosaur. It was the most complete set of transitional features ever found in one creature. In November 1999 National Geographic Magazine gave it a special mention in an article about the origins of birds, calling it, "a true missing link.".The debate, started by Thomas Huxley in the 1860s, seemed to have been resolved. Yet within months, new finds in China showed Archaeoraptor to be an extremely clever fake. The head and upper body of a hitherto unidentified bird had been glued onto the tail of a previously unknown dinosaur.It was a journalistic disaster for National Geographic Magazine. The fossil, however, was anything but a disaster for palaeontology. By an extraordinary stroke of good luck, as scientists in China and America examined the head and tail separately, they found that both were, in their own right, unique and extremely valuable specimens. Both, in their different ways, contained powerful evidence that birds had evolved from dinosaurs.
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【技术参数】——
Video 来源: DVBc > MPEG2 > Divx
视频编码: Divx 6
比特率: 1876 kb/s
Video 分辨率: 688x512 (1.34:1)
Video 画面比例: 4:3
音频编码: MP3
音频比特率: 128 kb/s (64/ch) CBR 48000 Hz
分集时长: 48m 43s
体积: 700mb
发布人： jvt40【Technical Specs】——
Video Source: DVBc > MPEG2 > Divx
Video Codec: Divx 6
Video Bitrate: 1876 kb/s
Video Resolution: 688x512 (1.34:1)
Video Aspect Ratio: 4:3
Audio Codec: MP3
Audio BitRate: 128 kb/s (64/ch) CBR 48000 Hz
RunTime: 48m 43s
Part Size: 700mb
Ripped by jvt40
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发表于 2020-7-22 16:17:48