But it was the sauropods like Brontosaurus, Diplodocus and Brachiosaurus who reached enormous proportions.

但蜥脚下目类的恐龙，比如雷龙梁龙和腕龙达到了巨大的比例。

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

本期视频的真正超级明星就是蜥脚类恐龙。

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

但古生物学者认为忍者泰坦龙是和雷龙的身体一样的蜥脚类动物。

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

但巨冠要颁给蜥脚类恐龙中的泰坦龙。

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

获得充足的食物对泰坦龙和其他蜥脚类恐龙来说不成问题。

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

异特龙捕食蜥脚类恐龙，蜥脚类恐龙可比如今陆地上最大的哺乳类动物大象还要大好几倍。

We know that the sauropods were not taking care of their newly hatched babies.

我们知道蜥蜴类动物不会照顾刚破壳的新生儿。

Because our logistic system is quite efficient, and a lower cost compared with sauropod a logistic delivery companies.

因为我们的物流网络相当高效，和比起第三方物流公司我们的成本更低。

The Allosaurus leap onto the side of the sauropod, they're trying to cut through the thick flesh.

异特龙跳上了这头蜥脚类恐龙的侧面，它们试图划开其厚厚的皮肉。

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中那些长颈蜥脚类那样蹒跚踱步。

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

蜥脚类恐龙四肢行走，脖子和尾巴都很长，属草食性恐龙。

From towering long-necked sauropods to fierce velociraptors, these ancient creatures have captivated our attention for generations.

从高大的长颈蜥脚类恐龙到凶猛的迅猛龙，这些古老的生物已经吸引了我们几代人的注意力。

And if you're a sauropod, you've got nothing else. So getting big is the only game in town.

如果你是蜥蜴类动物，那你就无所指望。只有长大才是王道。

Very early sauropods like Massospondylus, had legs somewhere in between these two extremes.

非常早期的蜥脚类恐龙，如大椎龙，其腿介于这两个极端之间。

So I'm sure that many, many sauropod nests were found and destroyed by predators before the babies could even hatch.

所以我肯定波塞东龙的窝在小龙还没孵出来时就被捕食者给毁了。

Unfortunately for this sauropod, it's unaware of the mud trap that lies just beneath the cracked and dry upper crust.

这头蜥脚类恐龙很不幸，它没有注意到这个烂泥陷阱就藏在干硬开裂的表层之下。

If I wanted to grow a 200-ton Sauropod, that's where I'd start...with about seven more pounds of brain.

如果我要养一头两百吨重的波塞东龙，我就要从这个大约七磅重的大脑开始。

Or a footprint of a giant sauropod dinosaur.

或者巨型蜥脚类恐龙的脚印。

Sauropods were probably burping and farting almost continuously, because that's what big plant eaters do.

波塞东龙无时无刻不在打嗝，放屁，因为巨型食草动物都会如此。

But others, like sauropods, faced a different challenge.

但其他恐龙，如蜥脚类恐龙，会面临不同的挑战。