But they were no match for the real giants of the era, Prosauropods.

但它们都不是这个时期真正的巨人，原蜥脚类。

But paleontologists believe that ninjatitans were sauropods with bodies like brontosaurus.

但古物者认为忍者泰坦是和雷的身体一样的蜥脚类动物。

Reaching enough food wasn't a problem for the titanosaurs and other sauropods either.

获得充足的食物对泰坦和其他蜥脚类来说不成问题。

The real super-stars of the show are the sauropods.

本期视频的真正超级明就是蜥脚类。

And it's this anatomy that enabled Prosauropods to evolve into the largest dinosaurs of all time.

正是这种解剖使原蜥脚类进化成历史上最大的 。

Sauropods are dinosaurs that walked on four legs, had long necks and tails and ate plants.

蜥脚类四肢行走，脖子和尾巴都很长，属草食性。

But the colossal crown goes to a group of sauropods called titanosaurs.

但巨冠要颁给蜥脚类的泰坦。

Allosaurus was feeding on sauropods - animals that are multi-times the size of our largest mammals today, the elephant.

异特捕食蜥脚类，这些动物的体型是如今最大的哺乳动物大象的好几倍。

Agility-wise Tenontosaurus is certainly much better off than, any of the Ceratopsians or Sauropod dinosaurs.

任何角类和蜥脚类的都没有腱灵活。

Certainly not as sort of plodding as what we think many of the long-necked Sauropods were like.

当然也不是我们想象那些长颈蜥脚类那样蹒跚踱步。

Allosaurus's feeding on sauropods, animals that're multi-times the size of our largest mammals today, the elephant.

异特捕食蜥脚类，蜥脚类可比如今陆地上最大的哺乳类动物大象还要大好几倍。

Its momentum literally drives it directly under the foot of the massive Sauropod.

巨大的惯性把它直接送到了这硕大的蜥脚类脚下。

Of course, to fossil-itate their research, they have to explore many Sauro-possibilites .

当然，为了验证他们的研究，他们必须探索许多可能的蜥脚类化石。

From where the sauropod stood, there would have been no early warning signs.

从蜥脚类所在的位置来看，不会有任何预警信号。

So birds are Saurischian dinosaurs, but are all Saurischian dinosaurs birds?

那么鸟类是蜥脚类，但是所有蜥脚类都是鸟类吗？

It may have fed solely on Sauropods, it may have fished, it may have gone after smaller prey.

它可能只以蜥脚类为食，它也许以鱼类为食，它可能攻击更小的猎物。

But others, like sauropods, faced a different challenge.

但其他，如蜥脚类，会面临不同的挑战。

But how did two sauropods, or worse, two stegosaurus, manage to, well, have sex?

但是，两只蜥脚类动物，或者更糟的是，两只剑，是如何设法交配的呢？

I see it in the tremendously long cervical ribs on that tremendous sauropod.

我在那只巨大的蜥脚类极长的颈肋上看到了这一点。

Only the type of dinos known as saurischians had them.

只有被称为蜥脚类的拥有它们。