Cats were everywhere. Fifty or so of them. In the house. On the lawn. Sunning themselves on the wall surrounding the property.Most were six-toed — making them polydactyls. That's different. The cats you usually see have five toes on each paw in the front. Four on each in the back.They were descendants of Snowball, a present from a ship's captain. A gift to writer Ernest Hemingway. He — Hemingway, that is — died in 1961.About 10 years ago, a visitor to the Ernest Hemingway Home & Museum in Key West thought something was wrong. Were the cats being treated well?...