Marley, a Labrador, got stem-cell therapy for his arthritis, surgery on his windpipe to deal with a condition that was choking off his breathing, and, at the end, medication to ease the pain of advanced cancer.

WSJ: Insuring Your Pet

Symptoms such as pain and bloating seldom are obvious until the cancer is more advanced, and numerous attempts at screening tests have failed.

NPR: Retooling Pap Test To Spot More Kinds Of Cancer