In this high definition one-off special we explore one of the most unexpected and important Jurassic discoveries of all time... Found in 2000 by a team of amateur fossil hunters exploring the Montana badlands, Leonardo – named after graffiti found near his burial site – is a young Brachylophosaurus, a four-legged plant-eating duck-billed dinosaur. This is the very first juvenile of the species discovered with extensive skin and the only dinosaur mummy to still contain the contents of its digestive tract. This once-in-a-lifetime finding means scientists now have more than just bones to fully reconstruct how dinosaurs looked and lived. From the cause of death to Leonardo’s last meal, scientific tests provide far more detail than the team of experts ever expected and by employing state-of the-art imaging scientists are able to unlock the most detailed images of dinosaur anatomy ever seen.