Any existence,so long as it has the benefit and is advantageous to the humanity,should become a moral community member and be treated morally.All living things,advantageous to humanity,are the moral community's boundary.But only the moral special and the direct origin,the goal as well as the standard,is possibly for promote the zoology and botany that is the non-humanity existence benefit.Contrarily moral ultimate origin,goal and standard only can be for promote the humanity the benefit.