Some whale species are dying off because climate change has affected their supply of food.

由于气候响了类的食物供应，一些类正灭绝。

It said that numbers of species have recovered enough to permit whaling.

报告显示，许多类已恢复至允许捕捞的数量。

Whales return to the warmth of western Greenland, amongst them are narwhals.

类纷纷回到温暖的西格陵兰海岸。其中的一种是角。

And it was only one of many species of carnivorous whales in the middle Miocene.

而且，它只是中新世中期众多食肉类中的一种。

It is China's only large whale found in coastal waters.

自此，它们成为了我国唯一一种活动于近岸的大型类。

And the key to that rapid spread, Owen says, might be a newly studied hub of cetacean musical exchange: the uninhabited Kermadec Islands, north of New Zealand, where whales from all over the South Pacific converge en route to Antarctica.

欧文表示，迅速传播的关键，可能是人们最近研究的一个类音乐交流中心：新西兰以无人居住的克马德克群岛，南太平洋各地的鱼前往南极的途中都会聚集那里。

There is a Leviathanic Museum, they tell me, in Hull, England, one of the whaling ports of that country, where they have some fine specimens of fin-backs and other whales.

他们告诉我，英国的捕港口赫尔，有一家鱼博物馆，那里有几头非常棒的脊鳍和其他类的标本。

The biting sperm whale of Japan is found in deposits that also have dolphins, other whale, very primitive sea lion like animals.

日本发现的噬抹香所处的沉积层还有海豚、其它类、非常原始的类似海狮的动物。

Those vertical lines entangle and kill endangered sea turtles and multiple whale species-including the North Atlantic right whales.

这些竖绳缠住并杀死濒临灭绝的海龟和包括大西洋露脊的多种类。

They primarily feed on marine mammals, like seals, porpoises, dolphins, sea lions, and even other whales occasionally.

它们主要以海洋哺乳动物为食，如海豹、鼠海豚、海豚、海狮，甚至偶尔会猎杀其他类。

Cetaceans are really sensitive to sound.

类对声音非常敏感。

Regina Asmutis-Silvia is a biologist with the Whale and Dolphin Conservation in Massachusetts. She was not involved in the research, but she says it is important.

瑞吉娜·埃斯穆提斯-西尔维娅（Regina Asmutis-Silvia）是马萨诸塞州类和海豚保护组织的生物学家。她没有参与这项研究，但她说该研究十分重要。

Did erudite Stubb, mounted upon your capstan, deliver lectures on the anatomy of the Cetacea; and by help of the windlass, hold up a specimen rib for exhibition?

是那个博学的斯塔布，高踞于绞盘顶上，向你发布过有关类解剖学的演讲吗；还是绞盘的帮助下，吊起过作为样本的肋骨供你观看？

There's a huge difference in the fact that the whales would have sonar and could use that to detect food.

类能够用声纳来探测食物的事实带来了巨大区别。

And, the paleontological evidence, the fossil evidence and evidence from looking at the DNA of living whales and other animals now really strongly points to whales being very closely related to hoofed mammals.

古生物学证据、石证据以及对现代类和其它动物DNA的研究结果现真的有力地指向类与有蹄类动物的亲缘关系非常接近。

And though none of them precisely answer to any known species of the present time, they are yet sufficiently akin to them in general respects, to justify their taking ranks as Cetacean fossils.

尽管它们之中没有一个与现存已知种精确相符，可大致方面依然与现代类非常相似，足以证明它们有资格跻身类石之属。

Rolland and her team studied baleen, a substance found in the upper part of the mouth of some kinds of whale.

罗兰和团队研究了须，一种位于某些类嘴巴上部的物质。

He was probably the father of modern whale research.

他或许是现代类研究之父。

And orcas are just part of Brian's multi-year whale project.

而虎只是布莱恩多年类项目的一部分。

The venture cetaceans can be divided into three big subspecies, each typified by big-name investors.

创业类可分为三大亚种，各以大牌投资人为代表。