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Check out this four-year-old boy swimming with the beluga whale.

看看这个和白鲸一起游泳的4岁儿童！

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Commonly referred to as the melonhead, the beluga is an Arctic and sub-Arctic cetacean.

白鲸是出没于北极和北极附近的鲸鱼，它们经常被叫成“蜜瓜头”。

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In the "Coldwater Quest" exhibit, visitors can watch three large white beluga whales.

VOA: special.2009.09.18

Rather than unveil a Velveeta Mac, Jobs thinks he can do a better job than experienced retailers at moving the beluga.

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But the American caviar industry is also being levered up on one end of a seesaw as the beluga sturgeon plummets on the other.

FORBES: Roe Rage

In the past two decades, the beluga's population has dropped by 90% as a result of overfishing, much of it illegal.

ECONOMIST: A ban on the trade in sturgeon eggs