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

本期视频的真正超级明星就是蜥恐。

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

但蜥下目的恐，比如雷梁和腕达到了巨大的比例。

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

但古生物学者认为忍者泰坦是和雷的身体一样的蜥物。

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

但巨冠要颁给蜥恐中的泰坦。

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恐来说不成问题。

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

因为们的物流网络相当高效，和比起第三方物流们的成本更低。

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

异特跳上了这头蜥恐的侧面，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.

当然也不是们想象中那些长颈蜥那样蹒跚踱步。

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

蜥恐四肢行走，脖子和尾巴都很长，属草食性恐。

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

异特捕食蜥恐，蜥恐可比如今陆地上最大的哺乳物大象还要大好几倍。

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

们知道蜥蜴物不会照顾刚破壳的新生儿。

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

如果你是蜥蜴物，那你就无所指望。只有长大才是王道。

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

所以肯定波塞东的窝在小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.

这头蜥恐很不幸，它没有注意到这个烂泥陷阱就藏在干硬开裂的表层之下。

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

从高大的长颈蜥恐到凶猛的迅猛，这些古老的生物已经吸引了们几代人的注意力。

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

如果要养一头两百吨重的波塞东，就要从这个大约七磅重的大脑开始。

Or a footprint of a giant sauropod dinosaur.

或者巨型蜥恐的印。

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

波塞东无时无刻不在打嗝，放屁，因为巨型食草物都会如此。

Sauropods are part of a larger group of dinosaurs called the sauropodomorphs, or sauropod-like dinosaurs.

蜥恐是更大的恐群的一部分，称为蜥恐或蜥恐。

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

非常早期的蜥恐，如大椎，其腿介于这两个极端之间。