Sea Mammals

Very small northern fish; forage for sea birds and marine mammals and other fishes.

北部非常小的鱼；海鸟、海生哺乳动物和其它鱼类的食物。

Whales are mammals that live in the sea.

鲸是生活在海洋中的哺乳动物.

Very small northern fish; forage for sea birds and marine mammals and other fishes. the act of substituting other food for the mother's milk in the diet of a child or young mammal.

北部非常小的鱼；海鸟、海生哺乳动物和其它鱼类的食物。在婴儿或幼小哺乳动物饮食方面用其他事物替代母奶的行为。

Sea mammals must periodically emerge from under the sea to breathe.

海生哺乳动物必须不断地从海底浮出海面呼吸.

Besides fish, other prey includes sea birds and marine mammals.

除了鱼类，们的猎物还包括海鸟和海洋哺乳动物。

US Navy Exempt of Restrictive Rules to Protect Sea Mammals

美国海军获准豁免保护海洋哺乳类规范约束

And it's not just sea mammals. Turtles, fish and other marine creatures are similarly affected as the sound travels for thousands of kilometers.

在声波传递数千公里的同时，不光是海生哺乳动物，乌龟、鱼以及其它海洋生物也会受到同样的影响。

Sea mammals, fish and caribou are important for food and economy.

海洋哺乳动物、鱼类和北美驯鹿是其重要的食物和经济支柱。

Finally, oil and other petroleum products that are spilled into bodies of water foul beaches and kill sea birds and mammals, such as dolphins and whales.

最后，溢人水体的油类和其他石油产品会对海滩造成污染，杀死海鸟和一些哺乳动物，如海豚和鲸。

So, it probably is the orcas that are causing the decline of all the smaller sea mammals mentioned in the passage-the seals, the sea lions, and the sea otters.

所以，很可能是逆戟鲸的捕食导致了文中提到的诸如海豹、海狮和海獭等小型哺乳动物的数量减少。

There are lots of marine mammals such as whales and seals in the sea.

海洋里有许多诸如鲸鱼和海豹类的海生哺乳动物.

These highly endangered sea mammals have been hurt by decades of overhunting.

近几十年的过度捕猎，使得这些海洋动物有濒临灭种的危险。