To find such living fossils from as far back as the Cretaceous is extraordinary.

能发现白垩纪的活是非同了不起的。

Some people call the fish a “living fossil.”

有人称为“活”。

It was the largest shark that ever existed. A living fossil. Thought to have been extinct for over two million years.

是有史以来最大的鲨。活啊。它应该在两百万年前就已经灭绝了。

Because of its ancient pedigree, the tuatara is often called a " living fossil" Oh man I'm a living fossil!

由于其古老的血统，大蜥蜴通常被称为“活”哦，伙计，我是活！

Today, the term " living fossil" is sometimes taken to mean that some organisms evolve, while others don't.

今天，“活” 一词有时被用来表示某些生物会进，另一些则不会。

And ... we'd be living fossils, too!

且… … 我们也会成为活！

Instead of finding a " living fossil" identical to an ancient beast, they have found a real fossil identical to a modern one.

他们不是找到了一个与古兽相同的" 活" ，是找到了一个跟现代兽类相同的真正。

So, as a descriptive term, " living fossil" doesn't seem very useful, at least on smaller geologic time scales.

因此，作为一个描述性术语， “活” 似乎并不是很有用，至少在较小的地质时间尺度上是样。

Just take a look at one of the most famous so-called living fossils -- the crocodylians, like alligators, crocodiles, and gharials.

看看最著名的所谓活之一——鳄，如短吻鳄、鳄和食肉动物。

People call them " living fossils." But, at the risk of being " that guy, " the idea of a " living fossil" is kind of problematic.

人们称它们为“活” 。但是，冒着成为“那个人” 的风险，“活” 的想法有点问题。

If the definition of a living fossil is an organism that's basically unchanged over long periods of time, then we got a whole world of living fossils around us!

如果活的定义是长时间基本不变的生物体，那么我们身边就有了一个活的世界！

Species and groups of species which are called aberrant, and which may fancifully be called living fossils, will aid us in forming a picture of the ancient forms of life.

被称为畸变的物和物群， 可以幻想地称为活， 将帮助我们形成一幅古代生命形式的图画。

But just one of the problems with the idea of " living fossils" is that there are actually many plants and animals that look a lot like their distant ancestors.

但“活”一概念的问题之一是，实际上有许多植物和动物看起来很像它们的远祖。

These anomalous forms may be called living fossils; they have endured to the present day, from having inhabited a confined area, and from having been exposed to less varied, and therefore less severe, competition.

些异常形式可以称为活；他们一直忍受到今天， 因为他们居住在一个狭窄的区域，并且接触到的竞争较少， 因此竞争也不那么激烈。