Researchers studying tyrannosaurs have had a leg up over those working on other dinosaurs-and even some extant animals-given T. rex's wide popularity.

研究霸王龙的科研人员在研究其他种类的恐龙，甚至是在研究一些现存的动物上很占优势，这也就使得霸王龙广受欢迎。

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T. rex was unlikely to have been a herbivore. But which animals the tyrant lizard actually ate is a far harder nut to crack.

霸王龙不太可能是草食动物，但是这个蜥蜴之王到底吃那种动物却是个更难解的谜。

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It's unclear at present what T. rex's exact sprinting speed was, but Persons believes this fleet footed dinosaur could run down all other animals in its ecosystem.

目前，关于霸王龙行进的速度问题尚没有一个确切的答案，但是，Persons却坚信，霸王龙的脚力在其生态体系中是首屈一指的。

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And,sometimes animals can fill that void that human beings can't fill.

VOA: special.2009.12.11

I just happened, while I was a graduate student at Oxford University, to meet somebody who is vegetarian and start talking to him about the way we treat animals which I really didn't know much about.

那时我还在牛津攻读硕士研究生,偶然遇到了一个素食者,我们聊到人类是怎样对待动物的,当时我的确不是很了解。

普林斯顿公开课 - 人性课程节选

But animals, no, they don't. We know that.

但是动物呢？，不，它们没有，我们很清楚这一点。

普林斯顿公开课 - 人性课程节选

"Our clients don't see animals just as animals, " says Daniela Guimaraes, the owner of Animalle Mundo Pet.

CNN: Brazil love motel for pets opens doors

Since 2008, there have been 89 illegal animal violations but the violations database doesn't differentiate animals by type so there's no way to know how many of those violations were for pigs.

WSJ: Pigs May Fly Before Finding a Legal Home in the City

The reserves do so because they don't want the animals killed for their horns.

WSJ: 3 charged in smuggling horns of endangered rhinos