In this third installment of the “Horse Series,” David sits down with Dr. Carlton Shield Chief Gover to explore the intersections of Indigenous oral traditions, radiocarbon dating, and the archaeology of horses across the Great Plains and the Caribbean. Carlton shares how Pawnee oral traditions align with archaeological evidence, revealing new insights into the transitions from hunter-gatherer to agricultural societies. The conversation expands into how the reintroduction of horses revolutionized Plains warfare, movement, and culture — transforming not just how people traveled, but how they defined bravery, honor, and trade. The episode then dives underwater — literally — as Carlton recounts his work with the Indiana University Underwater Science Program in the Dominican Republic. From Spanish shipwrecks to 400-year-old hazelnuts used to fight scurvy, the discussion highlights how horses, colonization, and trade converged across continents and oceans.