It's great that you created an isometric grid; it's rare to see it implemented in game jams!
I think the idea is so good; games that simulate parts of one or more ecosystems are some of my favorites.
It's a bit difficult to control them all at once. I managed a population of 408 rabbits, but I think that was more luck than strategy, hehe.
But it was a lot of fun, especially seeing the number of rabbits increase exponentially (something close to that).
