A fascinating picture book shares the resilience of a 20,000-year-old species of endangered fish in Death Valley. Adele, is a young girl on a trip with her family to Death Valley National Park in Southeastern California near the border with Nevada—an area known for its extreme temperatures and harsh conditions, and yet mostly unknown that it is teeming with a diverse range of endemic species, plants, and terrain. At Badwater Basin, whose salt-crusted floor is the result of a bygone lake which had evaporated over the course of thousands of years. At Salt Creek, Adele spots a beautiful and tiny blue and purple fish which the park’s Aquatic Ecologist tells the family is called a pupfish, an endangered fish renowned for its ability to exist with the intense heat and salt, and even adapt to a changing ecosystem over thousands of years since the Pleistocene epoch. Young readers will learn how the tenacious pupfish, originally among many types of sea life, are the only ones to have survived the changing and extreme conditions of Death Valley, and how there are even subspecies of pupfish who evolved separately in different pools of water. A back of book glossary explains terms used throughout the book, such as salinity, aquifer, and oasis, while an ending spread shares picture prompts inviting readers on a search to find various plants and animals in the book that make Death Valley their home. The first installment in the Bringing National Parks to Life series, which focuses on a different protected location within the U.S. National Park Service.