The computer model finds that mid-frequency sonar is mostly filtered out for the whales, while the higher frequencies the animals use for hunting appear to be unimpeded by sonar.

电脑模型表明，突吻鲸能过滤掉声纳大部分的中频声波，而声纳也不会影响这些鲸鱼用来捕猎的高频声波。

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Of the two plausible explanations for the decline—increased predation by killer whales or disease—disease is the more likely.

对于鲸鱼数量的下降，有两种可能的解释——虎鲸捕食或疾病的增加——疾病的可能性更大。

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However, they are, in one respect, less fully given back to the water than whales or dugongs, for turtles still lay their eggs on beaches.

然而，从某种程度上讲，海龟并没有像鲸鱼或儒艮一样完全回到水中生活，因为它们依旧在海滩上产卵。

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They will fire darts from small air rifles to collect blubber and skin for genetic testing,and to attach satellite-tracking tags to monitor the whales.

VOA: standard.2010.01.05

And it's a popular place for whale watching, when it's the season for the whales

到了看鲸鱼的季节，那是观赏鲸鱼的热门场所，

圣莫尼卡之景点 - SpeakingMax英语口语达人

Tokyo says it kills hundreds of whales each year in the Antarctic for scientific research to determine the status and size of whale populations.

VOA: standard.2010.01.06

Ideally, an icebreaker would come clear a path for the whales, he said earlier in the day, but crews are a 36-hour trip away.

CNN: Canadians rush to save 11 trapped killer whales

Two of the three whales made it to open water after rescuers used chain saws and de-icers from a Wisconsin company to create more breathing holes for the whales and a Soviet icebreaker cleared a path through the thickest ice.

CNN: Canadians rush to save 11 trapped killer whales

Not satisfied with these results, the green lobby has prompted the National Marine Fisheries Service to further cut water supplies, in part to improve the conditions for whales and other species out in the ocean.

FORBES: America's Agricultural Angst