Eden and meeting Other-Than-Earth species

Recently I wrote about the possibility of communicating with other Earth species using languages. I believe that this will be an important thing to know when we do come into contact with non-Earth living beings. The reason for this is that

1. It is a wealth in itself.
2. When we meet non-Earth species we will need these others to form languages.

As we are approaching the new world and becoming a space-faring species I suggest the following:

1. Develop the environment and return it to its pristine state after development of space based farms.
2. Return environment to pristine state and allow repopulation of sea, land and air.
3. Develop languages with mature non-human species. Possible to use monks etc as they are already doing so.