Groove-throated whales such as humpbacks have dense baleen that looks like a folded accordion.

二是须鲸科——比如座头鲸，它的鲸须非常密，像合起来的手风琴。

Scientists studied three species of baleen whales – blue, fin and humpback.

科学家研究了三种须鲸——蓝鲸、长须鲸和座头鲸。

We're trying to understand the behavior of baleen whales, of minke whales and humpback whales.

我们试图了解须鲸、小须鲸和座头鲸的行为。

And they concluded that Llanocetus had sharp teeth and large gums-but no baleen.

他们得出的结论是，刻齿拉诺鲸拥有锋利的牙齿和巨大的牙龈，但是没有鲸须。

They say it's the first passive feeding strategy ever seen in a baleen whale.

研究人员表示，在他们目前观察到的须鲸行为中，这是第一例被动进食策略。

Because I've seen big baleen whales, sir, whales measuring up to 100 feet long!

我看过的大鲸鱼，先生，是长到一百英尺的大鲸鱼！

As water streamed by, filaments from neighboring baleen plates naturally twined together and trapped the beads.

随着水源源流过，鲸须板上相邻鲸须细丝自然缠绕在一起并收集珠子。

But this isn’t something baleen whales do.

但这不是须鲸所做的事情。

These are all baleen whales which use hairy baleen plates instead of teeth to trap their prey.

这些都是须鲸，它们使用毛茸茸的须板代替牙齿来捕捉猎物。

Not nearly as large as modern whales baleen  whales but just slightly smaller than orcas.

不像现代须鲸那么大，但比逆戟鲸稍小一些。

Large baleen whales primarily use the lower frequencies and are often limited in their repertoire.

大型须鲸大多使用低频声音，并且声音类型有限。

By contrast, the baleen whales the researchers looked at, once they have encountered a shoal of prey, are in nutritional nirvana.

相比之下，研究人员观察到的须鲸一旦遇到一群猎物，就处于营养极乐世界。

And they get picked up by other baleen whales, possibly via their skulls, which conduct the vibrations along to their ear bones.

其他须鲸能接收到这些声音，可能是通过它们的头骨，并将振动传导到耳骨。

46.The sperm whale is actually closely related to the baleen whale, and it's only distantly related to the toothed-whales.

现在DNA 表明，巨头鲸与须鲸有关联，而且仅仅与有齿鲸有遥远的关系。

If a great whale, a big baleen whale, lives 60 years, it's thought it will sequester 33 tons of carbon dioxide throughout its lifespan.

如果一头大鲸，一头大须鲸，能活 60 岁，人们认为它在其整个生命周期中会吸收 33 吨二氧化碳。

Households that could not afford really nice sources of illumination would use lamps that burned the oil from baleen whales, which wasn't as nice.

买不起优质照明源的家庭会使用燃烧须鲸油的灯，但效果不太好。

Well versed in the theory of classification, he was poorly versed in its practical application, and I doubt that he could tell a sperm whale from a baleen whale!

他对于分类的理论很有研究，但缺乏实践，我想，他大概连大头鲸和长须鲸都分不出来!

But the killer at Cerro Ballena was even less discriminating, because it affected at least five other species of marine mammals along with the baleen whales.

但 Cerro Ballena 的杀手更不挑剔，因为它影响了至少五种其他海洋哺乳动物和须鲸。

In modern times, mass strandings usually involve toothed whales - like pilot whales and sperm whales - not baleen whales, like most of the ones found at Cerro Ballena.

在现代， 大规模搁浅通常涉及齿鲸——如领航鲸和抹香鲸——而不是须鲸，就像在 Cerro Ballena 发现的大多数鲸鱼一样。

But one of them, the captain of the Monroe, knew that Ned Land had shipped aboard the Abraham Lincoln and asked his help in hunting a baleen whale that was in sight.

但其中一只名叫孟禄号的捕鲸船船长，知道尼德·兰在我们船上。