I LOVED THIS. Every now and then a text/numbers based game comes along that totally hooks me and this is one. Took me a moment to get the hang of how the traits and everything worked, but it was all laid out very clearly, and the added story elements and names really got me imagining I was setting up some alien foodchain all the way through. I figured I would set up a stable plant base and only introduced the first herbivore about 2 weeks in, likewise for carnivores. In the end I think my world had a lush, varied forest populated primarily by armored pelicans, rhinorabbits, occasionally getting attacked by little tool-using kanga-lions. Made it to day 50 with a score of 486!
Only thing is I did eventually turn on some other music, but that's also because I spent a long time with this. Excellent job!