侏羅紀(jì)搏擊俱樂(lè)部 第20期:霸王龍?jiān)愀獾目谇恍l(wèi)生

When Witmer studied the skull, he saw that therewere serrated ridges in the teeth.

維特莫研究其顱骨時(shí)，看到牙齒里有鋸齒狀的脊?fàn)盥∑稹?/p>

The ridges are remarkably similar to those of anotheranimal with a deadly bite, a Komodo dragon.

這些隆起跟另一種撕咬致命的動(dòng)物非常相似——科莫多龍。

Another interesting attribute about the teeth ofTyrannosaurus Rex, is that the serrations on theteeth,

霸王龍的牙齒另一個(gè)有趣的特點(diǎn)是，牙齒上的鋸齒狀凸起，

the fine little ridges, perhaps actually lodged littlebits of flesh from a previous meal and that rotting of that flesh would've produced a great dealof bacteria.

細(xì)小的隆起里面可能會(huì)留下上一頓美餐的肉屑，這些肉腐爛后會(huì)產(chǎn)生大量細(xì)菌。

What we're talking about here is really bad oral hygiene.

我們說(shuō)的可真是很糟糕的口腔衛(wèi)生。

Now, in today we actually have animals, the Komodo dragon, this large gigantic lizard, thatactually has what we call a septic bite.

如今我們確實(shí)有這樣的動(dòng)物，比如科莫多龍這樣的巨大蜥蜴，這種攻擊被我們稱為敗血一咬。

That, actually, when it bites an animal, it, in a sense, infects it with the bacteria in its mouth.

其實(shí)就是當(dāng)它撕咬別的動(dòng)物時(shí)把口腔里的細(xì)菌感染給該動(dòng)物。

Equipped with these features it seems unlikely that any creature would attack a TyrannosaurusRex, even a juvenile.

有了這些特點(diǎn)的武裝，看來(lái)好像沒(méi)有什么動(dòng)物會(huì)攻擊雷克斯暴龍，哪怕是尚未成年的。

So to determine who would attack this T-Rex, paleontologists had to get a complete picture ofhow T-Rex lived, and fought.

要確定這頭霸王龍?jiān)獾秸l(shuí)的攻擊，古生物學(xué)家必須要獲得霸王龍生活和戰(zhàn)斗的全景。

The first step was to study its environment.

第一步是研究其生活環(huán)境。

When we look at the Cretaceous environments of this part of the world, it's not all that differentthan environments that we still have today.

我們?cè)诹私獍讏准o(jì)時(shí)期世界的這部分環(huán)境時(shí)，發(fā)現(xiàn)跟現(xiàn)在我們有的沒(méi)那么大區(qū)別。

When we look at the plants, when we look at the climate and so on,

我們研究了植物，也關(guān)注了氣候等，

we could assume that we were looking at something that looks very similar to what we see inthe Gulf States, climate wise and everything else-wise.

能夠推測(cè)我們要面對(duì)的環(huán)境跟現(xiàn)在墨西哥灣各州非常接近，無(wú)論是氣候還是其它方面。

Fossilized plants found near the skeleton revealed that the young T-Rex lived in an area nearconifer, pine and magnolia trees.

在骨骸附近發(fā)現(xiàn)的化石植物揭示，年幼的霸王龍生活的地區(qū)附近有針葉林松樹(shù)和木蘭樹(shù)。

They also discovered prehistoric ash, which suggests that volcanic activity occurred on aregular basis.

人們還發(fā)現(xiàn)了史前火山灰，表明那時(shí)的火山活動(dòng)頻繁發(fā)生。

But in the investigation, scientists discovered something else.

不過(guò)在調(diào)查中，科學(xué)家們還發(fā)現(xiàn)了別的信息。

Bones of prehistoric crocodiles and fish were found nearby.

附近還有史前鱷魚(yú)和魚(yú)類的骨骸。

This suggests that the T-Rex's body had been washed into a river during flooding.

這說(shuō)明霸王龍的尸體被洪水沖入了一條河流。

Evidence of a violent earth that could change without warning.

這是狂暴地球突發(fā)劇變的證據(jù)。

After studying its environment, the investigation looked to the behaviour of TyrannosaurusRex.

在研究了環(huán)境之后，調(diào)查還要關(guān)注雷克斯暴龍的行為。

Using evidence found in the bones and study from modern animal behaviour,

通過(guò)在骨骸上找到的證據(jù)和對(duì)現(xiàn)代動(dòng)物行為的研究，

scientists piece together how these huge dinosaurs hunted, fought and raised their young.

科學(xué)家們推斷出了這種龐大恐龍是怎樣狩獵、戰(zhàn)斗和撫育后代的。

Tyrannosaurus Rex was the ultimate aggressor.

雷克斯暴龍是終極攻擊者。

There's nothing that Tyrannosaurus Rex was afraid of including its biggest prey item,Triceratops,

雷克斯暴龍無(wú)所畏懼，包括它們最大的獵物——三角龍，

which had these big formidable horns and frill to protect its neck.

三角龍有可怕的大角和保護(hù)頸部的褶皺。

But there were no other dinosaurs around that would even give Tyrannosaurus Rex a secondthought about its own safety.

不過(guò)周圍沒(méi)有別的恐龍會(huì)讓雷克斯暴龍對(duì)自身安全有所顧慮。