Hemingway's cats are such a big deal that there's a book published about them. They were also the central issue of a USDA court case. In the 1930s, when Hemingway lived in his mansion in Key West, he was given a six-toed cat named Snowball. Since then, the cat's descendants have multiplied, and even today around 50 of Snowball's six-toed offspring can be seen roaming around the Hemingway House. A few years back, the USDA attempted to remove these cats, but they ultimately failed.