I was thinking it would be nice if you added the wooly mammoth in a future patch. They existed during the stone age and tool age, and would only need to be a reskin of the elephant with a new name; the stats, animations and food content could be the same.
It would be a simple thing to add, but I think it’d be a pretty nice gesture, and it would be great to see villagers throwing spears at mammoths in the early game.