Most sightings by sailors were probably normal marine creatures, such as manatees, dugongs, or sea-cows (now extinct). These appear to cradle their young much as a human would carry a baby. It is possible that sailors, seeing these unfamiliar beasts, would assume that they had stumbled across some sort of humanoid species. Mermaids described by the famous explorer, Christopher Columbus, were almost certainly manatees. He reported seeing three mermaids in the ocean off Haiti, in January of 1493. He said they "came quite high out of the water", but were "not as pretty as they are depicted, for somehow in the face they look like men."