Meredith Wadman, a health and infectious disease writer, discusses the alarming rise of Valley Fever cases linked to climate change, drought, and wildfires. Her firsthand research in California's desert reveals the struggle to track this elusive fungus. Meanwhile, Tina Lüdecke, a group leader at the Max Planck Institute, dives into the diets of our ancient ancestors, using nitrogen isotopes to uncover when Australopithecus shifted to a meat-heavy diet, shedding light on how this transition may have shaped our evolution.