dolphins

During deep sleep, the participants' brains behaved in a similar manner seen in birds and dolphins.

在深度睡眠阶段，参与者的大脑和鸟类与海豚处于类似的情况。

When there are fish near a boat, dolphins signalto the fishermen to put their nets in the water.

当船附近有鱼时,海豚会向渔民发出信号,让他们把渔网放到水里。

a school of dolphins

一群海豚

They've got this design of dolphins and our names engraved in Sanskrit.

那上面有海豚的设计,有梵语刻的名字.

" We have had a good voyage, and seen some dolphins.

“ 我们一路平安, 看到了海豚.

It is probably a mistake to credit dolphins with any motive of life-saving.

相信海豚具有救生的动机可能是错误的.

Many dolphins die each year from entanglement in fishing nets.

每年都有许多海豚被捕鱼网缠绕致死。

But, as the human study suggest, another reason for dolphins keeping their eyes open during sleep is that they can look out for predators while asleep.

但是，正如这项针对人类的研究所显示的，海豚睁眼睡觉的另一个原因在于它们睡觉时要提防捕食者。

I would be a dolphin because dolphins are intelligent creatures, and they have lots of fun.

我会做海豚,因为海豚是聪明的动物, 而且很有趣.

Tens of thousands of dolphins and small whales are brutally massacred every year.

每年有数万条海豚和小鲸鱼惨遭杀戮。

Scientists studied the reproduction, diet, and health of the dolphins.

科学家研究了海豚的繁殖情况﹑进食规律和健康状况。

Dolphins have sometimes been known to save drowning swimmers.

据悉海豚有时会救溺水的游泳者。

The one thing that I will never forget is swimming with the dolphins.

我永远也不能忘记和海豚游泳的情形.

Marine biologists are calling for Cardigan Bay to be created a marine nature reserve to protect the dolphins.

海洋生物学家号召将卡迪根湾建成一个海洋自然保护区，以保护那里的海豚。

Each dolphin chooses a specificwhistle for itself, usually by its first birthday Dolphins are like people in other ways, too.

每只海豚通常会在自己一岁生日时形成自己独特的哨子。海豚在其他方面也很像人类。

They cynically tried to trade off a reduction in the slaughter of dolphins against a resumption of commercial whaling

他们见利忘义地试图以减少屠杀海豚数量作为交换条件，重启商业捕鲸。

Whales and dolphins are still being slaughtered for commercial gain.

仍然有人为了商业利益大肆捕杀鲸鱼和海豚。

But scientists say dolphins and humans are very similar in some ways. How?

但是科学家说海豚和人类在某些方面非常相似。是怎样相似的呢？

They were banned in the 1980s, but the chemicals take a long time to break down and can linger in the oceans, accumulating in the blubber of whales, dolphins and porpoises1.

尽管在20世纪80年代，多氯联苯已被禁用，但这种化学物质需要很长时间才会分解，而且会滞留在海洋中，在鲸鱼、海豚和鼠海豚的鲸脂中积聚。

A hovering bird showed him where dolphins were chasing some flying fish.

一只盘旋的鸟给他指明了海豚追逐飞鱼的地方.

People travel to watch monkey shows, hug baby tigers and swim with dolphins.

人们去看猴子表演,拥抱小老虎,和海豚一起游泳。

Swimming with dolphins was unforgettable.

和海豚一起游泳是很难忘的.

Dolphins sometimes play in the wake of the boats.

有时海豚在船的尾流中嬉戏。

the sight of dolphins sporting amidst the waves

海豚戏浪的情景

A large proportion of the dolphins in that area will eventually die.

那片区域里的很大一部分海豚终将死去。

But scientists say dolphins and humans are very similar in some ways. How?

但是科学家说海豚和人类在某些方面非常相似。是怎样相似的呢？

They cynically tried to trade off a reduction in the slaughter of dolphins against a resumption of commercial whaling.

他们见利忘义地试图以减少屠杀海豚数量作为交换条件，重启商业捕鲸。

For example, dolphins, as well as other marine animals, shut down one hemisphere of the brain when they go to sleep.

比如海豚，还有其他一些海洋动物，它们睡眠时会关闭大脑的一个半球。

I saw all kinds of fish, the dolphins, and the sharks.

我看了各种各样的鱼 、 海豚 、 还有鲨鱼.

Many dolphins are accidentally killed through entanglement with fishing equipment.

很多海豚因为被渔具缠住而意外死亡。