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巨人，原蜥脚类。

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

但古生物者认为忍者泰坦是和雷身体一样蜥脚类动物。

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

获得充足食物对泰坦和其他蜥脚类恐来说不成问题。

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

本期视频真正超级明就是蜥脚类恐。

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恐 。

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

蜥脚类恐四肢行走，脖子和尾巴都很长，属草食性恐。

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

但巨冠要颁给蜥脚类恐泰坦。

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

异特捕食蜥脚类恐，这些动物体型是如今最大哺乳动物大象好几倍。

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

任何角类和蜥脚类恐都没有腱灵活。

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

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.

异特捕食蜥脚类恐，蜥脚类恐可比如今陆地上最大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.

巨大惯性把它直接送到了这硕大蜥脚类恐脚下。

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

然，为了验证他们研究，他们必须探索许多可能蜥脚类化石。

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

从蜥脚类恐所在位置来看，不会有任何预警信号。

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

那么鸟类是蜥脚类恐，但是所有蜥脚类恐都是鸟类吗？

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

它可能只以蜥脚类恐为食，它也许以鱼类为食，它可能攻击更小猎物。

But others, like sauropods, faced a different challenge.

但其他恐，如蜥脚类恐，会面临不同挑战。

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

但是，两只蜥脚类动物，或者更糟是，两只剑，是如何设法交配呢？

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

我在那只巨大蜥脚类恐极长颈肋上看到了这一点。

Only the type of dinos known as saurischians had them.

只有被称为蜥脚类恐拥有它们。