In the study, researchers from MacEwan University in Canada trained a kind of fish called African cichlids to go to a certain area of their tank to get food. They then waited for 12 days before putting them back in the tank again.

　　Researchers used computer software to monitor the fish’s movements. They found that after such a long break the fish still went to the same place where they first got food. This suggested that they could remember their past experiences.

　　In fact, scientists had been thinking for a long time that African cichlids might have a good memory. An earlier study showed that they behaved aggressively in front of certain fish, perhaps because they remembered their past “fights”. But until the latest findings, there was no clear evidence.

　　Just as a good memory can make our lives easier, it also plays an important part when a fish is trying to survive in the wild.

　　“If fish are able to remember that a certain area contains safe food, they will be able to go back to that area without putting their lives at risks,” lead researcher Trevor Hamilton told Live Science.

　　For a long time, fish were placed far below chimpanzees, dolphins and mice on the list of smart animals. But this study has given scientists a new understanding of their intelligence.

　　1、What is the article mainly about?

　　Fish having very bad memories.

【2017届广东省大埔县高考英语一轮复习语法填空综合训练：9（含解析）】相关文章：

★ 2017届高考英语二轮复习课时训练：23（含解析）

★ 2017届高考英语二轮复习课时训练：17（含解析）

★ 2017届高考英语二轮复习课时训练：8（含解析）

★ 2017届高考英语二轮复习课时训练：1（含解析）

★ 【三维设计】2017届高考英语（江苏专用）二轮复习阅读理解解题技法示范课件：5

★ 2017届高考英语二轮复习课时训练：20（含解析）

★ 2017届高考英语二轮复习课时训练：7（含解析）

★ 2017届高考英语二轮复习课时训练：14（含解析）

★ 2017届高考英语二轮复习课时训练：22（含解析）

★ 2017届高考英语二轮复习课时训练：18（含解析）