海豚科

Dolphin Any of various marine cetacean mammals, such as the bottle-nosed dolphin, of the family Delphinidae, related to the whales but generally smaller and having a beaklike snout.

海豚：一种海豚科海洋鲸类哺乳动物，如的宽吻海豚，与鲸近似但一般比鲸小且有喙状吻

Any of various marine cetacean mammals, such as the bottle-nosed dolphin, of the family Delphinidae, related to the whales but generally smaller and having a beaklike snout.

海豚：一种海豚科海洋鲸类哺乳动物，如的宽吻海豚，与鲸近似但一般比鲸小且有喙状吻

Is mammal , order Cetacea .

宽吻海豚是哺乳纲，鲸目海豚科的一种。

The gaur, a wild relative to the cow, is a threatened species found in South Asia.

淡水豚总科属鲸目，拥有四个栖息于淡水河流及河口的现存海豚科品种：当中三个生活在淡水河中，而另外一个品种，即普拉塔河豚则是生活在咸水河口及近岸海洋。

Neophocaena phocaenoides clustered with Delphinapterus leucas in Delphinoidea, inconsistent with morphological classification.

但在海豚总科中，鼠海豚科的江豚则与一角鲸科的白鲸聚合一起，与形态分类不同。

However intelligent they may be, it is probably a mistake to credit dolphins with any motive of lifesaving

不管海豚科动物多么聪明，相信它们具有救生的动机可能是错误的。

The sperm whales in Odontoceti was closely related with baleen whales in Mysticeti, and then clustered with Delphinoidea and then with Ziphioidea.

其中抹香鲸总科与须鲸亚目聚合在一起，然后与海豚总科聚合再与喙鲸总科相聚。

NJ cluster analysis indicated that subclass Mysticeti is a monophyly whereas subclass Odontoceti is a polyphyly, including Delphinoidea, Physeteroidea, Ziphioidea and Platanistoidea.

NJ聚类分析结果与目前的主流观点基本相同，即须鲸亚目形成单系群而齿鲸亚目则为多系群，后者包括海豚总科、抹香鲸总科、喙鲸总科和淡水豚总科。

While domesticated gaurs called gayals are common, the wild herds are still hunted for their meat.

然而，于科学分类中，它仍被列为淡水豚总科而不是海豚科。

Thousands of dolphins and porpoises and whales are killed as part of the by-catch each year.

每年作为副渔获物而被捕杀的鲸、海豚和海豚科动物都会达到数千头。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。