Some species of animals are almost extinct; and many others seem to be fast approaching a similar risk. What are the reasons for this? What should be done to solve this problem?

In recent years, much scientific research illustrates that many

species

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are disappearing, and some

scientists

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even point out that it is a threat to the earth.

Then

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, why does it happen? And how can we resolve the problem? In the following, I will present my view and recommendations. I argue that one crucial reason for the mentioned phenomenon is the fast development of human

cities

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. Thousands of years ago, the boundary between human

beings

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and

animals

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was not clear. Human

beings

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were living in the

forest

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as well as

animals

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. Yet, human

beings

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started to leave the

forest

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and built

cities

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only for the same kinds. And in the

last

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few decades, there has been an exponential growth of human

cities

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which requires more and more land.

Hence

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, human

beings

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not just left the

forest

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but

also

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destroyed the

forest

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, which is the home of many

animals

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. Once these

animals

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lost their home, they found it hard to survive, given that they no longer had a place to sleep and get food. A classic example is Chinese pandas. In the

last

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few decades, they have been in trouble and have become almost extinct

species

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. I propose several ways to address the issue. The

first

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suggestion is to governments. I agree that

cities

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' development is necessary. Yet, governments should have a better policy for their

cities

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' growth. They should avoid the overdevelopment of

cities

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and formulate laws to protect the living places of

animals

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. The

second

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suggestion is to

scientists

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. They should collect DNA sequences of various

species

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of

animals

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as soon as possible, especially for those who are almost extinct. In

this

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way,

scientists

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may adopt a de-extinction project in the future when the technology is available. The

third

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suggestion is for individuals. Though the power of individuals is limited, I think each of us should at least realize the importance of the diversity of

species

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. We should keep the motivation to protect other

species

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and not destroy their living places. In short, I argue that many

species

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are disappearing because of the dramatic growth of human

cities

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in the

last

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few decades.

This

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human activity destroyed many

animals

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' living places.

Accordingly

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, I suggest a few methods to governments,

scientists

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, and individuals, respectively, to solve the problem.