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The Allosaurus was so focused on the fact that Camarasaurus was stuck, it wasn't in top predator mode.
異特龍過于關注圓頂龍被困泥中，這一點它們沒有使用頂級掠食者模式。
That meant it got in too close.
就是說它們靠得太近了。
Never in its wildest imagination would it have thought that that Camarasaurus would shift its center of gravity, free those giant front feet,
異特龍無論如何也想不到圓頂龍能夠改變其重心解放出其巨大的前足，
and crush that Allosaurus like it was a bug.
像踩死蟲子一樣踩死這頭異特龍。
Camarasaurus may have triumphed over Allosaurus here.
圓頂龍勝過了異特龍。
But in the ultimate battle for survival, they and all the other dinosaurs at the lake would lose.
但是在終極生存之戰中它們和其它湖邊的恐龍都會失敗。
At the end of the Jurassic period, something big happens and it causes the extinction of a lot of different dinosaurs.
在侏羅紀時期結束時，有一個大事件導致了很多種不同恐龍走向滅絕。
Allosaurus, Camarasaurus, Stegosaurus, Ceratosaurus are victims to this unknown killer.
異特龍、圓頂龍、劍龍和角鼻龍都是這一未知殺手的犧牲品。
It appears that global climate change was the catalyst.
看起來全球氣候變化是催化劑。
When your environment changes, you've got one of three choices you can make.
當周圍環境發生改變時有三種不同選擇。
You can move to a place that suits you better, you can adapt to this new environment or you die.
遷移到更適合生存的地方適應新的環境否則死亡。
Science still seeks to know more about these amazing creatures who dominated the planet one hundred and fifty million years ago.
科學界仍在努力對這些奇異的生命進行更多了解，它們在一億五千萬年前是地球的統治者。
For years now, paleontologists have noticed that there seem to be different types of Allosaurus.
多年來，古生物學家注意到了似乎有三種不同類別的異特龍。
The discussion now is are we truly seeing different kinds of species that live along side each other, the way perhaps wolves and coyotes do.
要討論的是它們真的是不同種類在同一時期并肩生存就像如今狼和郊狼那樣。
Or are we seeing instead a single species that's changing across time as the environment changes and as the animals change.
還是我們看到的是一個物種在歷史上的不同階段隨著環境的變化自身產生的變化。
And that's a really interesting question if we want to understand how dinosaurs in general responded to the environment.
如果我們想要明白恐龍對環境的一般反應，那么這個問題就真的很有意思。
While the search for answers continues, this much is known: during the late Jurassic, at a dry watering hole in what became Utah, an unusually high number of predatory dinosaurs died along side of their prey.
雖然我們還在尋找答案，有一點已經確認無疑：在侏羅紀晚期當時的猶他州一處干涸的水坑，異常多的掠食性恐龍與它們的獵物死在一處。
Their bones are proof of a brutal natural world where a simple drink of water could lead to a battle to the death.
它們的骨頭是殘暴自然世界的證據在這個世界里，一次飲水就可能引發生死大戰。
