Wombats, like kangaroos and koalas, are native only to mainland Australia and some of its surrounding islands, including Maria Island National Park, where this photo was taken. We bring you a wombat in celebration of Wombat Day. Why Wombat Day? Why not? Wombat fan groups—which are a thing—loosely tie the October celebration to spring planting festivals from Australia’s past. (Yes, it’s spring in the Southern Hemisphere.) But many admit that it’s also just a good excuse to share photos of wombats and eat cake, preferably chocolate.