Pilot, navigator, engineer, doctor, scientist—ship's cat? All are essential to the well-staffed space vessel. Since the early days of interstellar travel, when Tuxedo Thomas, a Maine coon cat, showed what a cat could do for a ship and its crew, the so-called Barque Cats have become highly prized crew members. Thomas's carefully bred progeny, ably assisted by humans—Cat Persons—with whom they share a deep and loving bond, now travel...