Dinosaur Detectives

Dinosaur Detectives

恐龙侦探

Dinosaurs were animals that lived millions of years ago. Then they became extinct. This means they don't exist anymore. To find out about dinosaurs, we need to become dinosaur detectives. We need to find fossils. A fossil is a part or a print of a plant or animal that lived a long time ago.

恐龙是生活在数百万年前的动物。 后来它们灭绝了，意思就是现在世界上已经没有恐龙了。 想要了解恐龙，我们就得当恐龙侦探哦。 我们需要寻找化石。 化石是很久以前存活的动植物的残骸或者印记。

Some fossils show that dinosaurs had ways to stay safe. They had to protect themselves from other dinosaurs, or maybe other kinds of animals. We can look at fossils to see how each kind of dinosaur might have protected itself from an enemy.

有些化石告诉我们，恐龙有很多保护自身安全的办法。 它们得保护自己不受其他恐龙，或是其他种类动物的伤害。 我们可以通过化石了解每种恐龙是如何抵御敌人的。

The Stegosaurus had a row of bones running down its back. It also had sharp spikes on its long tail. It protected itself by swinging its tail back and forth. It may also have used the bony plate on its back to stay safe.

剑龙的背上长着一排骨头。 它长长的尾巴上还长着尖尖的棘刺。 它会来回甩动尾巴来保护自己。 它也可能用背上的骨板来保障自身安全。

Theopetosaurus was very big. We think it was so big that it needed to spend most of its time eating. Its size might have been enough to keep it safe. But Theopetosaurus also might have used its tail to help fight off its enemies.

重龙的体型非常庞大。我们认为它个头太大，大部分时间都得用来吃东西。光是它的体型就足够保护自己了，不过重龙也可能会用尾巴帮忙击退敌人。

The Triceratops had many ways to protect itself. It was a very big dinosaur. It probably lived and traveled in a herd. It might have been easier to stay safe in this group. The Triceratops had three large horns. It had bones on its neck and shoulders. These things protected the Triceratops.

三角龙有很多保护自己的办法。 它是一种体型非常大的恐龙。 它大概率是群居生活、集体活动的。 待在群体里会更容易保障安全。 三角龙长着三只大大的角。 它的脖子和肩膀上都覆盖着骨板。 这些部位都能保护三角龙。