Why should we protect wild animals

Nowadays,many wild animals are facing the danger of extinction. Because the environment where they live in is changing quickly.With the development of cities,many kinds of pollution has appeared.And many forests have disappeared because of the buildings.Wild animals'living area have become smaller and smaller. 　
　　For example,the global warming made the ice melt so that the polar bear had no place to live in.How terrible it is! 　
　　Wild animals are our friends.In order to protect them,we must take measures now.We should pay more attention to them.We can plant trees to make lands for them to live on.We should also make our environment clean. 　
　　Let's try our best to protect wild animals! 　
　　　　　 　
　　　　　　　　　　　　　　　　　　　　　　　　　　　指导老师——秦