I'm relatively new to the game, in that I've played the demo through about 3 or 4 times, but just recently purchased the full version, so many things are still unclear/new to me. I have two looming questions as I am getting started.
I don't want to know the full fish list, as discovering that will be part of the fun, but is there a pattern to all of this? Can I guess, for example, what type of fin the offspring of a Twin-fin X + a Speckled Y will have? Or what type of body? Or is it all randomly decided upon and placed in the code, with no discernable pattern aside from it being the same from game to game? If there IS a pattern of some sort that I could figure out, I would like to figure it out on my own, so please don't tell me, I just don't want to be LOOKING for a pattern that doesn't exist.

Also, is there one of each fin-type for each body-type? Or do some body-types not have all the fin-types? Or do ANY of the body-types have all the fin-types?
I believe the answers to these two questions will help me plan my moves as I discover my way through this well thought out, exciting game. Thanks in advance!

Andy