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Last Updated: Tuesday February 02 2010 16:16 GMT

Are prairie dogs able to 'talk'?

It might sound like these prairie dogs are just squeaking - but one scientist reckons they're actually using a really complex language.

Professor Slobodchikoff has found the animals use a series of special different squeaks to warn their colony if predators are approaching.

If correct, this means that prairie dogs use one of the most complex languages in the animal kingdom.

Ricky's been finding out more...