Here we have a whole collection of articles by Robert A. Freitas Jr. I selected them from Mr. Freitas site on the basis of their usefulness for creating alien lifeforms.
From the same source, we have a collection of articles on law and extraterrestrial life.
The Legal Rights of Extraterrestrials
Metalaw and Interstellar Relations
Crimes, Crazies and Creole Cookery might be appropriate here.
He also gave a link to a blog post on Metalaw and Thermoethics that’s worth a look.
Here’s another post from the preceding blog giving A Brief Introduction to Metalaw
Sex in Space ’cause I’m sure somebody’s looking for this.