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We can look at modern jaguar to see animals that sort of play the same role that Ceratosaurus does.
我們可以參考現代的美洲豹，來看一看差不多扮演著角鼻龍角色的動物。
Jaguars take on medium to smaller prey, but it's hesitant to attack really big things.
美洲虎捕獵中型和小一些的獵物，但它在攻擊真正大的動物時就會猶豫。
Now, compare that to Allosaurus who's much heavier and more powerful, if Ceratosaurus was the jaguar of Jurassic, then Allosaurus was the tiger.
與之相比，異特龍要重得多也更加有力，如果說角鼻龍是侏羅紀的美洲豹，那異特龍就相當于老虎。
Like modern tigers, Allosaurus was the ultimate predator of its domain.
和現代虎一樣，異特龍是它的領域里的終極掠食者。
It could take on anything it wanted.
它能夠與任何它想與之較量的東西較量。
The life of a predator rests on its ability to capture prey.
掠食者的生命依靠它捕獲獵物的能力。
But with less weight to carry, Ceratosaurus may have been more agile.
不過角鼻龍的體重較輕，可能會更加靈活。
In a foot race, Ceratosaurus would probably win, agility-wise, because it has a smaller body mass.
要是比拼腳力，角鼻龍可能會贏，它因為體重要輕一些靈活度上更好。
So basically, their body forms are very similar.
基本上來說，它們的體型非常相似。
But Ceratosaurus, because it is gonna be a little bit smaller, probably a bit more agile than Allosaurus.
但是因為角鼻龍更小一點兒，可能會比異特龍更加靈活一點點。
Because Ceratosaurus is not as robust as Allosaurus, it is a little bit quicker and certainly more agile.
因為角鼻龍沒有異特龍強壯，它會更快一點兒而且肯定更加靈活。
So even though Allosaurus is a fast dinosaur, he's not nearly as quick as Ceratosaurus.
所以盡管異特龍是一個速度很快的動物，可是還是遠不及角鼻龍快。
But the massive tail of Allosaurus also gave it an advantage when it came to speed and agility.
不過異特龍的巨大尾巴在速度和靈活度方面也給了它一個優勢。
Allosaurus is a slightly more advanced, slightly more specialized meat eater.
異特龍是稍微先進一點兒，稍微特化一些的肉食者。
Its tail is a little more adapted for agility.
它的尾巴為了靈活度改變得更多一些。
It has more of a tapering to the tail, not a deep tail.
它的尾巴更趨于錐形，而不是突然變細的。
And therefore it can use it as a counterbalance better in order to turn quickly.
所以它在急速轉彎時能更好地用尾巴做一個平衡物。
What's interesting is when we actually look inside the head, we see an inner-ear structure that suggests that this kind of quick movements are more important for Allosaurus than for Ceratosaurus.
更有趣的是我們在檢查它的頭部時，我們看到的內耳結構表明這種快速移動對于異特龍要比角鼻龍重要。
But to offset its smaller size and less powerful body, Ceratosaurus relied on a special adaptation for survival: it hunted in pairs.
為了彌補它更小的體型和沒那么強壯的身體，角鼻龍依靠一直特別的生存適應策略：它們成對狩獵。
It wouldn't be unusual for predators like Ceratosaurus to hunt in pairs.
成對狩獵對于像角鼻龍這樣的掠食者來說并不罕見。
Smaller predators are much more effective when they hunt in groups.
較小的掠食者在成群獵食的時候效率更高。
And we see that in members of the Raptor family.
我們在迅猛龍家族見證了那一點。
They offset their small sizes by working in a group to take on much larger prey.
它們通過成群狩獵來彌補它們的小體型來與更大的獵物較量。
Now, these dinosaurs were much larger than Raptors, so chances are they would not hunt in the really large groups.
這兩種恐龍比迅猛龍大得多，所以估計不會組成那么大的群體。
But since they related to birds, then it would make sense that they would probably hunt with a mate.
不過因為它們跟鳥類有關系，所以也能理解它們可能會和一個同伴一起狩獵。
