At Last not Last

There is a very special forest. You wouldn't believe how many out-of-the-way things have happened there recently. For one, animals started racing to see who is the fastest. Maybe running from foxes is just too boring for them, I don't know. I won't even start about the gigantic mushrooms that have sprung up after the last drizzle. And those massive holes in the ground! I dread to think of a creature that made those.