The stories of spotted knapweed and skua described in the article really stir my thinking and imagination. They well reflect the complexity of nature behaviors.

Indeed ,our nature has always behave in such a complex way,however,not until very recently a few people have become aware of this.Yet there are still many people considering those problems existing in our ecosystem in a very simple and linear way.This is harmful to the healthy of our ecosystem,because they may neglect some aspects of the ecosystem when they figuring out solutions to problems with the ecosystem.This situation may become especially serious when those people are main constructors or leaders of the government.So it has become especially important for our human beings to consider environmental and ecological problems in a more comprehensive way.

Never think that we get a good comprehension of nature.It is a mysterious world waiting us to explore.For a long time,scientists were considering the lack of insect enemies as a key factor in determing if a plant species becomes invasive,but they are finding out that the situation is decided more complexly,they also know that soil organisms may also be involved in the success of an invasive plant. So,we need to study the nature constantly and constant study will lead to good comprehension of our nature,which enables us to utilize nature more efficiently.Hoever,we are lack of innovations in many areas of science and technologies.We need new findings,new theories and we need some fresh blood.

How to solve the problems mentionded above? I believe we need a revolution from minds to actions.

In most cases,we may find that the more one person leanrs in a specific area, the less he or she will know in other areas.This is harmful to thingking,because it may hinder the person considering problems in multi-aspects. To solve this problem ,I think our education should take an important part in it.Education should give priority to develop students’ thingking capabilities,and encourage students to learn as much as they can in the early stage of education,which is beneficial to their future career.

In the aspect of action, I think more and more people should be encouraged to do experients or investigations in order to get some useful datum, instead of searching the internet and get some second-hand information.

In a word,always remember that the complexity of our nature determines that we should consider problems with our nature in multi-aspects.

许明珠