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METAIRIE, La. (WGNO) – For some pet owners, a dog or a cat just doesn’t seem as much fun as a ferret.

Ferrets are cuddly and curious but many of them—40 percent—will develop a very serious health condition.

In the video above, Dr. Gregory Rich of West Esplanade Veterinary Clinic and Bird Hospital, explains what it is and how it can be treated.