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Ceratosaurus, for 20 million years, he'd been one of the unchallenged predators at the top of the food chain.
角鼻龍，長達兩千萬年間，他高居食物鏈的頂端，無可匹敵。
But by using new science and re-examining the evidence at this site, it looks as if, at least once, he faced a interlope of more than twice his size as the balance of power changed and the hunter became the hunted.
不過在用新的科技對這些證據進行重新檢驗后，它好像曾經面對過體型是它兩倍的敵手，由于力量的對比發生了變化獵手變成了獵物。
They were the earth's largest animals.
它們曾是地球上最大的動物。
New technology and forensic evidence helps paleontologists bring to life some of their final moments.
新的科技和現場證據如今幫助古生物學家們重現了它們生命中的最后時刻。
In a quarry just outside what's now Canon City in Colorado,
在科羅拉多州坎農市不遠處的一處采石場，
a local farmer was tending to his land when he saw strange bones jutting up out of the earth.
一名當地的農民在整理自己土地時看到了土里支出來的奇怪骨頭。
He had no idea he'd uncovered one of the most unique finds in the dinosaur history.
他根本不知道自己揭開了恐龍歷史上最獨特的發現。
The quarry held the remains of ten different species of dinosaurs.
采石場里有十種不同恐龍的遺跡。
Nearly all were from plant eaters, but there were something more unusual.
這些差不多都是食植性恐龍，不過有一些情況更不尋常。
The skeletons had been ripped apart and most of the bones were missing.
這些骨架都被撕裂開來而且大部分的骨頭都不見了。
Many of the bones showed unusual gash marks and puncture wounds.
很多骨頭上有著不尋常的溝痕和穿孔。
Paleontologists started sifting through the evidence for clues.
古生物學家們開始仔細梳理證據找線索。
The discovery of the site near Canon City was really interesting because so many different species of dinosaurs were all found together.
在坎農市附近發現的那片場地很有意思，人們在那里集中發現了很多不同種類的恐龍。
But what makes the site really weird is that the majority of the skeletons we've found, only the neck and skull were there.
不過這個場地真正奇特的地方在于我們所發現的大多數骨架只有頸部和頭骨。
And in other cases, only the tails and a few random bones.
還有一些只有尾巴和些亂七八糟的骨頭。
In the hunt for dinosaurs, finding complete skeletons is rare.
尋找恐龍的過程中，很少會發現完整的骨架。
Paleontologist Dr. Larry Martin of the University of Kansas explains why.
堪薩斯大學的古生物學家拉里·馬丁博士解釋說。
The reason that we don't find more complete skeletons is exactly the reason why you don't get rich every time you go into a casino.
我們找不到很多完整的骨架的原因就和你不能每次進賭場都贏錢是一樣的。
The odds are against you.
你成功的幾率太小了。
Its body and its skin began to rot and fall off and eventually the bones are torn apart by scavengers and maybe taken some place else and eaten.
它的身體和皮膚開始腐爛并脫落最終骨頭也會被食腐動物撕開還有可能被帶到別處吃掉。
Or they get separated and are washed into different areas.
骨架還可能會被分開并沖到不同的地方。
