The dolphin has evolved a highly developed jaw.
海豚已经进化形成高度发达的下颌。
The story describes the extraordinary encounter between a man and a dolphin.
这个故事描述了一个男人与一只海豚之间的奇遇。
The whale, like the dolphin, has become a symbol of the marvels of creation.
鲸，和海豚一样，已经成为造物杰作的象征。
I like to watch dolphin shows.
我喜欢看海豚表演。
The dolphin helps you do that.
那只海豚帮助你做到这一点。
Then they watched a dolphin show.
然后他们看了一场海豚表演。
Why do you want to be a dolphin trainer?
你为什么想成为海豚训练师？
These patterns were analogous to the tones used in the dolphin study.
这些模式与海豚研究中使用的音调相似。
These sounds, it has been found, are produced in the air-filled nasal sacs of the dolphin.
人们发现，这些声音是由海豚充满空气的鼻囊发出的。
If the wrong paddle was pressed, the dolphin had to wait several seconds before it could try again.
如果按错了踏板，海豚必须等几秒钟才能再试一次。
But unlike in the dolphin experiment, the monkeys had to complete four trials before they got any feedback.
但与海豚实验不同的是，猴子们必须完成四项实验才能得到反馈。
It began with a study one of them did on a dolphin, who had been trained to recognize a particular high-pitched tone.
首先，他们中的一个人对海豚做了一项研究，训练它识别一种特殊的高音。
Once the dolphin figured out the result of pressing this new paddle, it did choose it frequently when the trial was difficult.
一旦海豚发现了按这个新踏板的结果，当测试难度非常高时，它就会很频繁地按这个踏板。
A writer hired Brenner to take photographs for a children's book about the dolphin show at an amusement park in nearby Nokomis.
一个作家雇佣Brenner为一本儿童读物拍摄位于诺克米斯附近的游乐场里的海豚表演的照片。
Scientists made an unexpected discovery in the waters south of New Guinea in 2005: a new species of dolphin called the snub-fin.
2005年，科学家们在新几内亚的南部水域得到了一个意想不到的发现：一种叫做矮鳍的海豚新物种。
What he tried to do was to teach a male dolphin called Bass and a female called Doris to communicate with each other across a solid barrier.
他试图教一只叫巴斯的雄性海豚和一只叫桃瑞丝的雌性海豚隔着一道坚固的屏障互相交流。
The experiment didn't necessarily indicate that the dolphin had knowledge of its own uncertainty, just that it wanted to avoid negative consequences.
这个实验不一定证明了海豚知道自己不确定答案，只能证明海豚想避免消极后果罢了。
In polluted environments, dolphins gradually accumulated toxins in their body fat, and the larger the dolphin, the more accumulated toxin it can tolerate.
在被污染的环境中，海豚体内的脂肪会逐渐积聚毒素。海豚的体型越大，它所能承受的毒素就越多。
The researcher noted that the dolphin is quite eager to press the paddle when it was sure of the answer, but exhibited hesitation during difficult trials.
研究人员注意到，海豚在确定答案时会很着急地按下踏板，但在难度高的测验中则表现出犹豫。
The sounds bounce off them and the lower jaw captures the returning sounds, making it possible for the dolphin to sense what's in the surrounding water and decide where to swim.
声音从它们那里折射，下颌捕捉到返回的声音，使海豚能够感受到周围水域中有什么，并决定游向哪里。
The unusually high mortality rate among dolphin calves in the industrially contaminated waters along Florida's Gulf Coast is probably the result of their being poisoned by their mother's milk.
在佛罗里达海湾沿岸被工业污染的水域中，海豚幼崽异常高的死亡率可能是被它们母亲的乳汁毒害的结果。
Using four paddle-like limbs to propel its bulky body through the water, the pliosaur made easy work of passing prey such as dolphin-like ichthyosaurs.
上龙用四根桨状的四肢推动它庞大的身体在水里游来游去，轻而易举地就能掠食形似海豚的鱼龙。
There are also gentle animals, like the sloth and the pink dolphin.
也有温和的动物，比如树懒和粉红海豚。
丹尼尔：嗯，像海豚一样。
Dolphin, dolphin, dolphin I love you.
海豚，海豚，海豚，我爱你。
Shelby said: 'It looked just like a dolphin.
谢尔比说：“它看上去就像海豚。”
Globally, most dolphin populations are safe.
全球范围内，大多数海豚种群是安全的。
New species of dolphin discovered in Australia.
新种海豚于澳大利亚被发现。
From a distance, the dolphin seemed approachable enough.
从远处看，这条海豚似乎很容易接近。
From a distance, the dolphin seemed approachable enough.
从远处看，这条海豚似乎很容易接近。
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