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。

We can see we see fin whales, humpbacks, minkes...the occasional blue whale.

我们可以看到长须鲸、座头鲸、小须鲸......偶尔会看到蓝鲸。

The minke whale is black, grey, or purple in color.

小须鲸的颜有黑、灰。

They are the second smallest baleen whale.

它们是第二小的须鲸。

Well, baleen whales emit sounds around 14 hertz, the deepest among mammals.

须鲸能发出 14 兹左右的声音，是哺乳动物中最低沉的。

Perhaps, though, baleen whales might continue to evolve and get bigger still.

不过，也许须鲸会继续，得更大。

But the ancestors of baleen whales had a very different diet.

但是须鲸祖先的饮食习惯与这些后代的差别非常大。

Baleen whales are the gentle giants of the sea.

须鲸是海洋中温和的庞然大物。

The biggest whales of all (blue, humpback and so on) are baleen whales.

所有鲸鱼中最大的鲸类（蓝鲸、座头鲸等）是须鲸。

On the first day of the hunt, two minke whales were killed.

捕鲸的第一天，有2只小须鲸被杀。

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，这是第一例被动食策略。

Baleen whales eat small creatures that include krill, fish or crustaceans called copepods.

须鲸以小型生物为食，包括磷虾、鱼类被称为桡足动物的甲壳类动物。

Smaller species such as humpback, Bryde's or minke whales can eat fish or krill.

较小的物种，如座头鲸、布莱德鲸小须鲸可以吃鱼类磷虾。

Now scientists think they have an idea of how baleen whales do it.

现在，科学家们认为他们已经知道须鲸是如何做到这一点的。

The three were humpback, minke and sei whales.

这三头鲸鱼分别是座头鲸、小须鲸和长须鲸。

The minke whale is thus revealed to be the source of the decades-old unidentified bio-duckitude.

因此近20多年来一直不确定来源的这些类似鸭叫的声音原来是小须鲸所发出。

Because minke whales swim in icy Antarctic waters, they're difficult to monitor, especially in winter.

因为小须鲸在冰冷的南极水域游泳，很难检测它们的行踪，特别是在冬季。

A whale was seen between the ship and the ice-field.

他们在船和一片冰原之间发现了一头长须鲸。

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。

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。