Dolphins sleep with one eye open! ……

Dolphins sleep with one eye open! ……

Dolphins sleep with one eye open! ……

Dolphins (海豚) sleep with one eye open. ……

In the Amazon River (亚马逊河), there are many pink dolphins (海豚). ……

2020年9月总第71期2020年9月总第71期Smart dolphins Smart dolphins      ……

VCG  海豚“捕鱼工”，人类好帮手海豚“捕鱼工”，人类好帮手Humans and dolphins show the wonders of cooperationHumans and dolphins show the wonders of cooperation ……

that dolphins, monkeys, fruit bats and even ants are capable of rescuing their fellow creatures when... of species (物种) and far from a solely human trait (特征).Dolphins endanger themselves to rescue trapped (被困 ……

可爱的海豚Many people like dolphins very much. Dolphins are mammals (哺乳动物). They live in the sea and eat.... Dolphins are very friendly and clever. They know people and help them. I like cute dolphins.江苏 ……

Choose the answer: 1. Which of the following about dolphins is NOT true?A. They spend most... of their brain awake while sleeping.D. They may be sleeping even when they’re swimming. 2. When dolphins ……

Dolphins might “smile” at their friends.   TUCHONGDolphins might “smile” at their friends...). Dolphins may do this, too.We often smile to avoid (避免)misunderstandings (误解). Dolphins may do this, too ……

为什么海豚会跃出水面？Dolphins jump to breathe (呼吸) air. Compared with (与……相比) swimming, jumping carries them far by using less energy4. It is also a good way to signal (发信号) to other dolphins. ……

Dolphins keep watching and listening even while “asleep”. They must sleep with one eye open in case of predators (食肉动物). ……

你知道海豚有多聪明吗？DOLPHINS are some of the smartest animals on Earth. They can communicate with each other and even understand sign language. Now scientists have found that dolphins can even use tools ……

根据你所听到的短文内容，选择正确答案。短文听两遍。1. Dolphins are _____. A. the friendliest sea animals B. good at telling stories C. all living in the zoo now2. There are lots of stories about dolphins _____.A. playing ……