Balaenid whales, such as the bowhead, have long, springy plates with a delicate fringe.

一是露脊鲸科——比如弓头鲸，其鲸须板长而富有弹性，上面长着精细的流苏状鲸须。

For the tests, Werth submerged racks of humpback and bowhead baleen in a flow tank.

为了测试，Werth 将座头鲸和弓头鲸鲸须浸入沉淀池中。

The bowhead's long fringe formed the more effective filter — perfect for catching tiny krill.

弓头鲸长“流苏”形成的过滤器效率更高，能够完美地捕获细小磷虾。

Bowheads, belugas and narwhals head for open water on the southern edge of the Arctic Ocean.

弓头鲸、白鲸以及角鲸纷纷向北冰的开水面。

Each individual bowhead will come up with their own song and improvise new ones all the time.

每只弓头鲸都会唱己的歌，并随时即兴创作新的歌曲。

Some tortoises live for nearly 200 years. Bowhead whales can live even a decade or two longer.

有些海龟活了将近200年。弓头鲸甚至可以比海龟多活一二十年。

Until now it's the bowhead whale you've hunted, and it won't risk going past the warm waters of the equator.

您以前捕捉的都是平常的白鲸，它并木敢冒险通过赤道的温热海水。

Blue, fin, bowhead minke whales, and of course humpback whales.

蓝鲸、鳍鲸、弓头小须鲸，当然还有座头鲸。

But the songs of bowhead whales are freer, she said.

但弓头鲸的歌声更由，她说。

Stafford and other scientists compared the bowheads' songs to jazz music.

斯塔福德和其他科学家将弓头鲸的歌曲比作爵士乐。

And ocean dwelling animals like bowhead whales and narwhals aren't immune to these changes either.

弓头鲸和独角鲸等海动物也不能幸免于这些变化。

In the past they've scanned an eel, a bowhead whale fetus, and even a shark.

过，他们扫描过鳗鱼、弓头鲸胎儿，甚至鲨鱼。

Scientists have studied the bowhead whale, to see if they have different versions of genes than other mammals.

科学家们研究了弓头鲸，看看它们是否具有与其他哺乳动物不同的基因版本。

When a species becomes endangered, like the bowhead, there can be no justification for any tradition, any culture.

当一个物种像弓头鲸一样濒临灭绝时，任何传统、任何文化都没有理由存在。

Scientists think only male bowhead whales sing and that they are singing to find a mate.

科学家们认为只有雄性弓头鲸会唱歌，而且它们唱歌是为了寻找配偶。

Bowhead whales feed on plankton, while ringed seals eat fish and other animals in which mercury has had the chance to accumulate.

因为露脊鲸以浮生物为食，而环斑海豹则吃鱼和其它可能积聚汞的动物。

The title of longest-lived mammal goes to another Arctic species: the bowhead whale, which was an estimated 211 years old.

寿命最长的哺乳动物的头衔属于另一种北极物种：弓头鲸，估计有 211 岁。

Instead of the ringed seals they ate out on the ice, the bears are foraging on bowhead whale carcasses, cast up on the beach.

它们不再在冰上捕食环纹海豹，而是开始以被冲上海滩的的露脊鲸尸体为食。

Those animals are only members of the genus Balaenoptera furnished with dorsal fins, and like sperm whales, they're generally smaller than the bowhead whale.

这些东西不过是鲸科，有脊鳍的动物，大头鲸也一样。它们通常比普通白鲸小一些啊！

Notable exceptions are the nearly song-like choruses of bowhead whales in summer and the complex, haunting utterances of the humpback whales.

有些值得一提的例外是：巨口鲸在夏天发出的声音几乎是歌曲一样的和声，而座头鲸发出的则是复杂的过耳难忘的声音。