Humpbacks don't need to die for science.

驼背鲸不需要为科学而死。

Only male humpbacks sing, and each group of whales sings its own tune.

只有雄鲸才歌唱，并且每个都有自己的音色。

She describes how humpbacks build "nets" of bubbles to catch fish—a form of communal tool use;

她还描述了驼背鲸是如何编织“气泡网”来捕食其他鱼类的——一种对共生工具的使用形式；

Fin whales make pulsed sounds at around 20 Hertz, while humpbacks sing at much higher frequencies.

长须鲸的声音频率是20赫兹，座头鲸更高一点。

Several genetically different groups of humpbacks, separate populations with little interchange among them, live in the South Pacific.

几群在基因上说有差异的座头鲸，彼此隔绝的生活南太平洋，没什么基因交流。

McCollough scoured the catalogue and developed an expertise for identifying humpbacks based on their distinct shape, color and markings.

McCollough查找了整个目录，在基于鲸鱼们各自截然不同的形状、颜色、斑纹的基础上，她培养出了一种辨别座头鲸的技能。

Unlike orca, which are odontocetes or toothed whales, humpbacks are mysticetes, harmless leviathans with only baleen plates in their mouths.

座头鲸不像齿鲸亚目鲸或齿鲸，它们是须鲸亚目、无害的大海兽，嘴里只有须鲸板。

Last year, the same ship was discovered to have a dead fin whale - which, like humpbacks, are classified as endangered - pinned to its bow when it returned to Vancouver.

就在去年，这艘船在返回温哥华途中，人们发现一条死亡的长须鲸——与座头鲸一样被列为濒危物种的鲸——就卡在船头。

The whales were counted during a special 3-year project, known as Structure of Populations, Levels of Abundance and Status of Humpbacks (SPLASH), which was launched in 2004.

鲸鱼被认为是人类的构造、丰富度水平和座头鲸(原始)地位的象征，从2004年开始，每3年就会更新计算其总量。

Normally, female humpbacks don't wander as far as males. She also crossed through several different breeding grounds. Humpbacks usually only travel to neighboring breeding areas.

而且，座头鲸通常只会迁移到邻近的繁殖区，但是，这头母鲸却穿越了多个繁殖区。

Feeding grounds for the humpbacks are usually farther offshore, but scientists said this year weather conditions have brought anchovies closer to land, and the whales have followed.

驼背鲸的进食范围通常远离海岸，但是科学家说，今年的天气条件让凤尾鱼更靠近沙滩，于是鲸鱼尾随而至。

Doubtless open-mouthed themselves, Pitman and Durban - along with a film crew from the BBC Natural History unit - watched as one seal, swept into the water by the orca, swam towards the humpbacks.

当一头被杀人鲸扫入水中的海豹游向座头鲸时，皮特曼和德班一定是和来自BBC自然博物组的摄影师们一起目瞪口呆地看着。