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Arthritic cat on water treadmill

Here's the extraordinary story of Coco the cat, and her arthritic joints. Coco's nearly 16 years old, which in human years, makes her in her nineties .

She has arthritis, and she's also been hit by a car, but thanks to an animal hydrotherapy pool, Coco now has a spring in her step.

This is one fearless feline, and she's taken to the pool like a duck to water. Jane Hesketh reports.