Without the herd to watch your back, Ankylosaurus has to watch its own.

没有同伴的互相帮助，甲龙全靠自己小心。

Albertosaurus fed on horned dinosaurs, duck billed dinosaurs, and even the armored Ankylosaurus.

阿尔伯特龙进食带角的恐龙、鸭嘴龙甚至披盔戴甲的甲龙。

For an Ankylosaurus, a T. Rex's distinctive odor is a dead giveaway.

对于甲龙，雷克斯霸王龙发出的独特气味就是死亡的警示。

Ankylosaurus' supersensitive nose can pick up a carnivore over three miles away.

甲龙极其敏感的嗅觉能在三英里外就辨别出食肉动物的气味。

Fortunately, an Ankylosaurus has another effective weapon in its armory - a highly refined sense of smell.

幸运的是甲龙还有个绝招，那就是极其敏感的嗅觉。

The nasal region of Ankylosaurus and its kin is one of the most specialized parts of its anatomy.

甲龙及其亲缘物种的鼻子是它全身最特殊的一部分。

Ankylosaurus has an armory of senses to keep carnivores at bay.

甲龙的秘密武器是它的嗅觉可以御敌于千里之外。

Ankylosaurus combines steel-like protective plates with a powerful offensive weapon.

甲龙将铁一般的护甲与强有力的攻击武器结合。

Ankylosaurus has not one, not two, but three layers of armor.

甲龙的护甲不是一层，也不是两层而是三层。

Will we be shocked by the discovery of an Apatosaurus or Ankylosaurus with protofeathers someday?

有一天我们会因为发现具有原始羽毛的雷龙或甲龙而感到震惊吗？

So our observation for ankylosaurus is that the tail is really weird and different.

所以我们对甲龙的观察是，尾巴真的很奇怪，与众不同。

And the question we can ask is, what did Ankylosaurus use their tail for?

我们可以问的问题是，甲龙用尾巴做什么？

Did ankylosaurus use their tail as a defensive weapon?

甲龙用尾巴作为防御武器吗？

Ankylosaurus was a walking tank-- a massively armed and armored animal.

甲龙就是一部移动的坦克，全副武装并且防护严密。

Ceratopsians and Pachycephalosaurus appear for the first time, and some Ankylosaurus have evolved tail clubs.

角龙类和厚头龙属首次出现，部分甲龙进化出尾巴。

Ankylosaurus and Stegosaurus both have bones called osteoderms which means skin bones.

甲龙和剑龙都有称为骨皮的骨骼，意思是皮肤骨骼。

Nine meters long and weighing four tons, Ankylosaurus's home is the American West.

体长九米，重达四吨的甲龙栖息在美洲大陆的西部。

Ankylosaurus are plant eaters, but that designed to kill.

甲龙是食草恐龙，但是这根骨棒却是用于杀戮。

Ankylosaurus is a slow lumbering plant eater.

甲龙是种行动迟缓的食草动物。

Ankylosaurus also has a powerful offensive weapon-its tail, a club that can pummel an opponent with 19 tons of force.

甲龙还拥有一个强有力的攻击武器，它的尾巴是一根能以九十吨的力道攻击敌人的骨锤。