This is an interesting idea -- most of these wouldn't be difficult to track, just tedious. The real pain in the neck would be adding them to the (already huge) list of graphable/trackable stats in the UI. I wonder if we'd almost want a separate list that you could swap the dropdown between -- "Traits" for genetic stats that don't change (all their physical traits, species/tags, etc) and "Stats" for fecundity and other things that change in real time. Food for thought.