From blue whales to kit foxes, spectacular images bring California's wildlife into sharp focus. Natural forces reshape the land, yet some species - like the bristlecone, one of the world's oldest organisms - persist, constantly adapting to a changing world. Still, in a space shared with 40 million people, is there room for all?

California is a land of extremes - tallest, deepest, highest, hottest. It's home to the richest biodiversity in the Americas, from gray whales traveling the California Current to mountain lions in the Sierra Nevada and redwoods harvesting water from the air. In a rapidly changing and thirsty world, drought, dams and fire pose dire threats to an ecosystem connected by rivers on land, air and sea.