The fish is an Australian lungfish, and it lives in a glass container in a museum.

这条鱼是一种澳大利亚肺鱼，它生活在博物馆的玻璃容器里。

Until a few years ago, the oldest Australian lungfish was at the Shedd Aquarium in Chicago.

直到几年前，最长寿的澳大利亚肺鱼是在芝加哥的谢德水族馆。

They believe it is the oldest living example of a lungfish in an aquarium.

他们认为它是水族馆中现存的最长寿的肺鱼。

The lungfish, one of the least evolved of all complex animals, has forty times as much DNA as we have.

肺鱼，所有动物中一种进化最不完善的鱼类，其染色体数是我们的40倍。

In the rivers, there were lungfish, turtles, crocodilians and even aquatic lizards.

在河流中，有肺鱼、海龟、鳄鱼甚至水生蜥蜴。

The aquarium has two other Australian lungfish.

该水族馆还有另外两条澳大利亚肺鱼。

And lungfish, being related to the ancestors of all tetrapods, or four-limbed vertebrates, are equipped with true lungs.

而与所有四足动物或四肢脊椎动物的祖先有关的肺鱼，都配备了真肺。

This kind of makes sense if you look at air-breathing fish today, like the lungfish and bichir.

如果你今天看一下会呼吸空气的 鱼，比如肺鱼和比希尔鱼，这种说法是有道理的。

They were able to piece together evidence that the last common ancestor of all lungfish and tetrapods started vocalizing more than 400 million years ago.

他们能够拼凑出表明所有肺鱼和四足动物的最后一个共同祖先在四亿多年前开始发声的证据。

Some animals, like the African Lungfish, have  survived mostly unchanged for about 400 million years, but lungfish are the exception rather  than the rule.

有些动物，如非洲肺鱼，在大约 4 亿年的时间里几乎没有变化，但肺鱼是例外， 而不是规则。