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In a prehistoric world, there's a war waging between herbivores and carnivores,
在史前世界里，食草動物和食肉動物之間沖突不斷，
and the plant eaters are winning.
而勝利往往屬于前者。
They seem to break all of the rules.
它們似乎打破了所有的常規。
There's nothing like them around today.
當今世界沒有哪種生物能與之相比。
For these plant-eating giants,
對這些食草的巨獸來說，
survival relies on a battery of weapons and defenses as impressive on the inside as they are on the outside.
它們的生存與否依賴于一系列攻防武器，無論在體內還是體外都令人震驚不已。
A single blow from those horns could kill you.
被那些角輕輕一刺，你就會沒命。
Now, 65 million years on, cutting-edge imaging technology takes us inside their minds
如今，六千五百萬年后先進的成像技術將會帶我們進入它們的意識世界，
to reveal what the world's toughest defenders are made of.
來揭示這世界上最頑強的防御者是由什么所組成的。
America during the Cretaceous Period.
白堊紀時期的美洲大陸。
Stalking the landscape are some of the most ferocious predators ever to inhabit the earth.
在這片土地上游蕩的都是地球上當時最兇猛的食肉動物。
Carnivores have evolved into formidable hunters.
它們都已進化成了可怕的掠食者。
It's the only way they can survive in this brutal world.
這是它們在這個野蠻世界里生存的唯一方式。
The prey they hunt are the most well-armed, best-protected animals in history.
它們的獵物也是有史以來武裝最精良防御最完善的動物。
Herbivores of the Cretaceous are built to take on the biggest teeth and sharpest claws nature has ever produced.
白堊紀的食草動物天生就能承受自然界最大尖牙和最強利爪的猛烈攻擊。
Ankylosaurus has armor designed like a bulletproof vest.
甲龍的甲殼就像是一件防彈背心。
Triceratops' horns can pierce the skins of a Tyrannosaurus rex.
三角龍的角可以刺穿雷克斯霸王龍的表皮。
Parasaurolophus can detect a threat miles away.
副櫛龍可以察覺到幾英里之外的危險。
And a full-grown Sauroposeidon is a colossus too big to overcome.
而成年的波塞東龍就是一座大得無法征服的巨像。
These plant eaters are no pushovers. They're no...they're no pansies.
這些食草動物可非等閑之輩。它們可不是小貓咪。
We have records, quite a few, of adult dinosaurian predators being killed by herbivores.
成年的食肉恐龍被食草恐龍殺害的例子比比皆是。
It did happen. It happens today.
確實是這樣，類似的事情今天也有。
Lions get kicked in the face and die from a single blow from the rear end of a zebra.
獅子要是被斑馬的后腿直接踢中面部，就會死去。
