Guess who's wolfling run is doing well for once? My wolfling run hasn't died out in nearly 40 generations, even with population controls exporting the old Norns and a weird egg finder set up. I think moving them into a simpler seasonal migration world is what did the trick. The run is quite boring now, so I'll just write about my egg finder setup instead!
During another wofling run, I noticed the older eggs weren't hatching. I'd find generation 10 eggs mixed in with my generation 20+ eggs and that annoyed me. So I rigged up an egg finder to a timer, and made sure the older eggs would hatch first. It worked surprisingly well.
It works quite well, but has one slightly annoying side effect. Your generation count isn't going to go up very fast with this egg finder set up, especially if your creatures are prolific breeders. It basically forces every egg to hatch in order, so it takes a while for one generation to finally end. So maybe it's not great for every run.
Fireplace (it's under December 15th)