The dog saved its owner by the smell

A few years ago, Stephanie Herfel, a resident of Wisconsin, U.S.A., noticed a strange behavior by her dog named Sierra Leone.

When the dog began to hide under the closet and cover its nose with its tail,the owner noticed abdominal pain. After that she decided to consulte the doctors.Herfel’s has been diagnosed third phase of ovarian cancer.

According to studies, in 97 percent of cases, dogs are able to distinguish healthy blood from the cancerous blood by smell.

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