2007-10-23, Blue Whale Calls - 蓝鲸的声音

Our oceans are alive with sound. Sound that most of us never hear. But there is one man who is definitely listening.

"The blue whales in the eastern North Pacific off the California coast make two primary types of calls. You know one is this very pulsive, called 'Wu Wu Wu'."

This rhythmic¹ throbbing² drumbeat is the A call.

"And another is a more constant call that, you know, kind of a, a low moan that throbs³ slightly in frequency"

In fact the B calls blast at such low frequency our human ears barely register the sound.

Equipped with an underwater crittercam from National Geographic⁴, John and his team head to the waters off the central coast of California to eavesdrop⁵ on their calls. Blue whales travel there to feed in the largest underwater gorge⁶ on the west coast of the United States. The water is rich with krill. The team deploys⁷ the crittercam on the back of a blue whale.

"Begin. Searching cup is on."

What the footage reveals is a deep water dive nearly a 1000 feet down in the search for a swarm⁸ of krill. Yet another crittercam picks up a faint drumbeat just what John has been waiting for. It is the unmistakable beat of a blue whale's A call. As a shape emerges from the darkness, another blue whale. The team discovers that perhaps this solitary⁹ giant isn't so isolated¹⁰ after all. The calls may not be about food but may be about companionship instead.

"Just really need to see that we have one of the things we have been really hoping to get which is some underwater footage carrying a call. I'm excited, I am tantalized¹¹ that I am wanting more."

1 rhythmic   

adj.有节奏的，有韵律的

参考例句：

• Her breathing became more rhythmic.她的呼吸变得更有规律了。
• Good breathing is slow,rhythmic and deep.健康的呼吸方式缓慢深沉而有节奏。

2 throbbing   

a. 跳动的,悸动的

参考例句：

• My heart is throbbing and I'm shaking. 我的心在猛烈跳动，身子在不住颤抖。
• There was a throbbing in her temples. 她的太阳穴直跳。

3 throbs   

体内的跳动( throb的名词复数 )

参考例句：

• My finger throbs with the cut. 我的手指因切伤而阵阵抽痛。
• We should count time by heart throbs, in the cause of right. 我们应该在正确的目标下，以心跳的速度来计算时间。

4 geographic   

adj.地理学的，地理的

参考例句：

• The city's success owes much to its geographic position. 这座城市的成功很大程度上归功于它的地理位置。 来自《简明英汉词典》
• Environmental problems pay no heed to these geographic lines. 环境问题并不理会这些地理界限。 来自英汉非文学 - 环境法 - 环境法

5 eavesdrop   

v.偷听，倾听

参考例句：

• He ensconced himself in the closet in order to eavesdrop.他藏在壁橱里，以便偷听。
• It is not polite to eavesdrop on the conversation of other people.偷听他人说话是很不礼貌的。

6 gorge   

n.咽喉，胃，暴食，山峡；v.塞饱，狼吞虎咽地吃

参考例句：

• East of the gorge leveled out.峡谷东面地势变得平坦起来。
• It made my gorge rise to hear the news.这消息令我作呕。

7 deploys   

（尤指军事行动）使展开( deploy的第三人称单数 )； 施展； 部署； 有效地利用

参考例句：

• It then deploys "decoy" programs designed to attract the virus. 然后，它释放“诱饵”去吸引病毒。
• But when that doesn't work, he deploys his secret defense mechanism. 但没有效果，它要施展绝密自卫武器了。

8 swarm   

n.(昆虫)等一大群；vi.成群飞舞；蜂拥而入

参考例句：

• There is a swarm of bees in the tree.这树上有一窝蜜蜂。
• A swarm of ants are moving busily.一群蚂蚁正在忙碌地搬家。

9 solitary   

adj.孤独的，独立的，荒凉的；n.隐士

参考例句：

• I am rather fond of a solitary stroll in the country.我颇喜欢在乡间独自徜徉。
• The castle rises in solitary splendour on the fringe of the desert.这座城堡巍然耸立在沙漠的边际，显得十分壮美。

10 isolated   

adj.与世隔绝的

参考例句：

• His bad behaviour was just an isolated incident. 他的不良行为只是个别事件。
• Patients with the disease should be isolated. 这种病的患者应予以隔离。

11 tantalized   

v.逗弄，引诱，折磨( tantalize的过去式和过去分词 )

参考例句：

• The delicious smell tantalized us. 香味逗引我们。 来自辞典例句
• It tantalized him that she should have such a loathing for him. 她竟会这么厌恶他，这倒使他心里直纳闷。 来自辞典例句