In one world,what are your friends?Why?

First,I think that animals is my friend,beacous I am a animial too.
Second,I think that environment is my friend,beacous sometime in somebody's eyes,I am a environment too.
Third,I think the people who want to be my friendare my friends,beacous I think make friends with them are better than with zhe people that don't want to be my friends.
That's all,thank you.