海獭重新在阿拉斯加威廉王子湾玩耍，大马哈鱼和其他一些物种的数目也出现反弹。
Sea otters once again play in the waters of Alaska’s Prince William Sound, and salmon and some other species have rebounded.
早在20世纪70年代，多数专家认为南部海獭数量将阿拉斯加的那样以每年近20%的增长率快速增长。
Back in the 1970s, most experts thought the southern sea otter population would expand at a swift clip of nearly 20% per year like those in Alaska.
首先，由于没有人发现有海獭尸体被冲上阿拉斯加海滩，所以污染理论捕食那么站得住脚的。
First, the pollution theory is weakened by the fact that no one can really find any Dead Sea otters washing off on Alaskan beaches.
海獭是一种生活在北美西海岸从加州到阿拉斯加沿线的小型海洋哺乳动物。
The sea otter is a small mammal that lives in waters along the western coast of North America from California to Alaska.
几年前，阿拉斯加海岸的海獭数量急剧减少。由于海獭对于维持海岸沿线生态平衡有非常重要的作用，所以其数量下降引起了广泛的关注。
When some sea otter populations off the Alaskan coast started rapidly declining a few years ago, it caused much concern because sea otters play an important ecological role in the coastal ecosystem.
比方说，在过去的几十年里，生活在阿拉斯加西海岸的斑海豹、海狗、海狮和海獭数量极具下降。
For example, over the past few decades, there's been a major collapse of the populations of harbor seals, fur seals, sea lions, and sea otters living on the coasts of western Alaska.
比方说，在过去的几十年里，生活在阿拉斯加西海岸的斑海豹、海狗、海狮和海獭数量极具下降。
For example, over the past few decades, there's been a major collapse of the populations of harbor seals, fur seals, sea lions, and sea otters living on the coasts of western Alaska.
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