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Last Updated: Tuesday December 15 2009 18:06 GMT

Vets use special kit to check rhinos


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Vets at a zoo in Chester have had to come up with new equipment to safely examine their rhinos.

Because the creatures are so big and their skin is so thick, it's hard to hear their hearts with a regular stethoscope.

And because they can be dangerous, getting close to them for a long time isn't a good idea.

Watch the video to see how the vets solved their problems.