Recent years have seen a seismic shift in popular perceptions of the natural world. Thanks to filmmakers and other public-minded people, we have begun to see nature not as a remote and untamed expanse, but as the world that surrounds and sustains us. We have learned to marvel at the creatures that evolved over millions of years, knowing that our own lives are tightly intertwined with Earth's forests, oceans, and climate. Can we preserve the diversity that spawned us, so it's there for us celebrate?