'Dreadnoughtus' dinosaur unearthed

The skeleton of the 'biggest dinosaur to walk on earth', found in South America, is one of the most complete of its size ever found.

The huge fossil is from a dread-nough-tus. Scientists studying it say because almost all the bones are there they can find out even more about this amazing creature.

Hayley talks to one of the scientists who helped dig the skeleton up.

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