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Luis
Utah

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And the more we find, the more complete our understanding of the world of the dinosaurs becomes. It makes you realise just what a vast body of knowledge we've now mastered about these extinct animals. So as a palaeontologist can come along, look at a single bone and say, this must be a whole new species. And it also makes you wonder how many other dusty, unloved specimens are sitting there on store shelves, just waiting to be recognised.
Back in Los Angeles, Luis's team are working on the bones that were dug up in Utah. The next step in turning them into an exhibition is to work out exactly what they are.
And this is where the fossil bones end up, and here the preparateurs continue the process of excavation, this time using delicate tools and cleaning away the last of the hard sediment, revealing the bone itself. It's here in the dino lab that the dinosaurs really start to come back to life.

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