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The Lost World of Cretaceous Rivers

Beneath the endless sands of the Sahara lies a forgotten world — a place where colossal rivers once carved across Africa, feeding wetlands larger than the Amazon and sustaining some of the strangest creatures to ever walk the Earth. A hundred million years ago, this now-barren desert was a thriving ecosystem teeming with life: gigantic crocodiles, car-sized fish, soaring pterosaurs, and the most extraordinary predator of all — Spinosaurus, the dinosaur that broke every evolutionary rule. In this epic journey through deep time, we’ll uncover how these ancient waterways shaped evolution, powered entire food webs, and gave rise to creatures unlike anything alive today. We’ll explore fossil clues buried beneath the sand, follow the rise and fall of apex predators, and witness the slow unraveling of a once-unstoppable ecosystem as climate shifts drained the rivers away. From breathtaking reconstructions of prehistoric Africa to cutting-edge scientific discoveries using satellite imaging, AI, and isotope analysis, this film reveals a lost chapter of Earth’s history — and shows how its lessons echo into our future. What happened to the rivers that once roared through the Sahara? Why did their worlds vanish? And what warnings and insights do they hold for us today? Join us as we travel back to the mid-Cretaceous and rediscover the vanished rivers of the Sahara — a story of life’s resilience, adaptation, and fragility written in stone, bone, and sand.