Nigel travels back 65 million years to track down the devastating predator and undoubted king of the dinosaurs: the Tyrannosaurus rex. His search begins in Montana, North America, where many fossilized remains of this formidable creature have been found. Montana would look a strange place to us now; grass would not evolve for another 30 million years and volcanoes dominated the landscape, but you would recognise the trees – the Monkey Puzzle, we still have them today and that pretty much makes them living fossils!

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