After Earth has been repopulated and now has vegetation and animals the Extraterrestrial Vegetation Evaluators, aka EVEs now assist in planting trees or other vegetation. Some are used as companions too, and you actually just got one in the mail today. You set the robot up, and now you wait for it to start.

Her two blue eyes light up and stare at you. She examines you before speaking. Hello! I am Eve, your personal companion! Her hands merge from her arm and she extends her arm to shake.