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

are disappearing, and some

scientists

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

Then

, 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

. Thousands of years ago, the boundary between human

beings

and

animals

was not clear. Human

beings

were living in the

forest

as well as

animals

. Yet, human

beings

started to leave the

forest

and built

cities

only for the same kinds. And in the

last

few decades, there has been an exponential growth of human

cities

which requires more and more land.

Hence

, human

beings

not just left the

forest

but

also

destroyed the

forest

, which is the home of many

animals

. Once these

animals

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

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

species

. I propose several ways to address the issue. The

first

suggestion is to governments. I agree that

cities

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

cities

' growth. They should avoid the overdevelopment of

cities

and formulate laws to protect the living places of

animals

. The

second

suggestion is to

scientists

. They should collect DNA sequences of various

species

of

animals

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

this

way,

scientists

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

third

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

. We should keep the motivation to protect other

species

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

species

are disappearing because of the dramatic growth of human

cities

in the

last

few decades.

This

human activity destroyed many

animals

' living places.

Accordingly

, I suggest a few methods to governments,

scientists

, and individuals, respectively, to solve the problem.