These research results / do not surprise many pet owners. / A dog named Trudi / kept sniffing at her owner’s leg. / The owner went to the doctor, / who found that the man had melanoma. / This is a form of skin cancer / that can be deadly. / The dog identified it early, / before it spread. / Another patient was treated for cancer, / but her dog kept sniffing and making noises / at the cancer site. / The doctor had not removed all the cancer. / Once again, / a dog identified its owner’s cancer. /