According to the Seamen’s Church Institute of New York, cats and dogs were the most popular mascots on ships in the good old days. Seamen were especially fond of cats, however, as they brought good luck to a maiden voyage. Although ship cats were primarily responsible for killing the rats that gnawed at the ship’s ropes and provisions, they also provided companionship and a sense of security for men who were often away from loved ones for long periods of time. Complete story at Hatching Cat NYC