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For protection, Deinonychus relies primarily on its brain.
出于自我保護，恐爪龍主要依靠其大腦。
The brains structure of Deinonychus is really quite remarkable.
恐爪龍的大腦結構真的非常復雜。
Relatively speaking, Deinonychus have one of the largest brain in the dinosaurs kingdom.
相對來說恐爪龍擁有恐龍王國里最大的大腦。
And it's used to achieve one goal.
它的大腦只有一個目的。
This is when the animal needs some brain power to know how to attack,
這時候這種動物就需要用腦力來判斷如何進攻，
when to attack, what part of the prey animal to attack.
何時進攻，進攻獵物哪個部位。
The part of the brain used of cunning is the cerebrum, which is large in Deinonychus.
腦部用來思考的部分是大腦，恐爪龍的大腦較發達。
It analyses informations from all over the body.
能分析身體各部位傳達來的信息。
And unlike the unsofisticated brain of its prey, it makes decisions.
與其頭腦簡單的獵物不同，它能作出決定。
Deinonychus could also do something no other predators could do. Call in reinforcements.
恐爪龍還會做一些其它肉食動物不會的事情。例如呼叫援兵。
What we can see in Deinonychus in the brain structure is that protentially it has the capacity to pull up cooperative hunting.
我們能從恐爪龍的大腦結構中分析出恐爪龍可能有能力組織集體狩獵。
Deinonychus is clever enough to deal with highly developed creature, a second Deinonychus.
恐爪龍的智商足以應對高度進化了的動物——恐爪龍同類。
Hunting together requires the ability to communicate as well as to share tactics and strategies.
合作狩獵需要溝通能力，并且要分享戰略戰術。
This is something only made possible by a large brain.
這一點只有依靠較發達的大腦才能實現。
This is an animal that might actually have some cleverness too.
這種動物或許有些許智慧。
Some of the animals might be able to solve problems.
它們中有些還能解決問題。
The ability to work cooperatively is the ability to stay alive.
能協同作戰，就意味著能生存下去。
Deinonychus have to keep one step ahead of its prey, anticipating trouble before it happens.
恐爪龍必須先其獵物一步在危險發生之前預料到后果。
