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Triceratops' most effective defensive tool is one totally hidden from view.
三角龍最有效的防御裝備其實(shí)隱藏在體內(nèi)。
A ball-and-socket joint which connects its 450-kilograms head to its neck.
它是一個(gè)將四百五十公斤重的頭部與頸部相連的球形關(guān)節(jié)。
This joint gives Triceratops the ability to maneuver its head almost 360 degrees.
這個(gè)關(guān)節(jié)可以讓三角龍的頭部做到近三百六十度的旋轉(zhuǎn)。
This bone is the closest nature has ever produced to a perfect sphere.
這塊球形骨骼是在自然界中所形成的最完美的球體。
It allows movement in almost any direction.
這能讓它的頭朝任何方向轉(zhuǎn)動(dòng)。
In a fraction of a second, a Triceratops can place its head directly between its body and the threat.
轉(zhuǎn)瞬之間三角龍就能轉(zhuǎn)動(dòng)頭部直面它的挑戰(zhàn)者。
It's like a gigantic white rhinoceros on steroids. Its head always faces you.
它就像是一頭注射了興奮劑的白犀牛。它總是把正面對著你。
This unique adaptation, with its flexibility and maneuverability,
這種獨(dú)一無二的靈活機(jī)動(dòng)的適應(yīng)能力
is not found on any other dinosaur or on any mammal today.
在其他恐龍和哺乳動(dòng)物身上都未曾發(fā)現(xiàn)。
You could imagine it being able to turn its head very rapidly, very quickly one direction or another.
你可以想象一下，它能把頭部迅速地從一個(gè)方向轉(zhuǎn)向另一個(gè)方向。
Rhino can't do that-- almost the fencing with your horns that Triceratops could do.
犀牛就無法像三角龍那樣，把自己的角當(dāng)擊劍來使。
Any fight is like it to end with a fatal blow. On average, Triceratops killed T. Rex.
任何戰(zhàn)斗都會(huì)以致命一擊而告終。一般來說，三角龍會(huì)殺死雷克斯霸王龍。
Major mortality factor in T. Rex populations was this tank, this herbivorous tank.
雷克斯霸王龍種群的主要死亡因素就是來自于這種食草巨獸的反擊。
Imposing bulk, strong, solid armor, and dangerous weapons all deliver the power to stand up to huge predators.
龐大的體積，堅(jiān)固的甲殼危險(xiǎn)的武器都賦予了它能與巨型食肉動(dòng)物對抗到底的能力。
But in the world of Cretaceous, other defenders come equipped with tools
但在白堊紀(jì)的世界里，其他防御者的防護(hù)裝備
not only to survive an attack but to defeat an opponent Ankylosaurus, is a herbivores design to kill.
不僅能夠保命，而且還能擊敗對手，甲龍就是其中之一，它天生就是食草動(dòng)物中的殺手。
