In 2014, the palaeontologist Nizar Ibrahim went public with an astonishing discovery he’d made while studying a set of dinosaur bones from the Moroccan Sahara. But almost immediately, it caused a rift amongst his colleagues – forcing them to question everything they’d ever known about their work.

This is the strange and chaotic story of Nizar’s discovery – how it upended everything we know about dinosaurs – and the unlikely, devastating saga behind humankind’s pursuit of the truth about the Spinosaurus.

This episode was produced by Alex Atack and edited by Dana Ballout. Fact checking was by Deena Sabry and sound design by Youssef Douazou. Our team also includes Nadeen Shaker, Zeina Dowidar and Finbar Anderson.

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