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For protection, Deinonychus relies primarily on its brain.
出于自我保护，恐爪龙主要依靠其大脑。
The brains structure of Deinonychus is really quite remarkable.
恐爪龙的大脑结构真的非常复杂。
Relatively speaking, Deinonychus have one of the largest brain in the dinosaurs kingdom.
相对来说恐爪龙拥有恐龙王国里最大的大脑。
And it's used to achieve one goal.
它的大脑只有一个目的。
This is when the animal needs some brain power to know how to attack,
这时候这种动物就需要用脑力来判断如何进攻，
when to attack, what part of the prey animal to attack.
何时进攻，进攻猎物哪个部位。
The part of the brain used of cunning is the cerebrum, which is large in Deinonychus.
脑部用来思考的部分是大脑，恐爪龙的大脑较发达。
It analyses informations from all over the body.
能分析身体各部位传达来的信息。
And unlike the unsofisticated brain of its prey, it makes decisions.
与其头脑简单的猎物不同，它能作出决定。
Deinonychus could also do something no other predators could do. Call in reinforcements.
恐爪龙还会做一些其它肉食动物不会的事情。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.
我们能从恐爪龙的大脑结构中分析出恐爪龙可能有能力组织集体狩猎。
Deinonychus is clever enough to deal with highly developed creature, a second Deinonychus.
恐爪龙的智商足以应对高度进化了的动物——恐爪龙同类。
Hunting together requires the ability to communicate as well as to share tactics and strategies.
合作狩猎需要沟通能力，并且要分享战略战术。
This is something only made possible by a large brain.
这一点只有依靠较发达的大脑才能实现。
This is an animal that might actually have some cleverness too.
这种动物或许有些许智慧。
Some of the animals might be able to solve problems.
它们中有些还能解决问题。
The ability to work cooperatively is the ability to stay alive.
能协同作战，就意味着能生存下去。
Deinonychus have to keep one step ahead of its prey, anticipating trouble before it happens.
恐爪龙必须先其猎物一步在危险发生之前预料到后果。
