“Life as We Do Not Know It” by Peter Ward.
Ward’s writing sytle is approachable if not a tad bit too self absorbed. He has some valid ideas on classifying non-Earth related life, should it ever be found or created in the lab. I’d like to come back and read his other more well known work “Rare Earth” in which he takes the unpopular view that life may in deed be rare in the cosmos. I’m sticking with the Biology thread and delving into “The Beak of the Finch” next.