Now that they're released from their pens, here's a bit more info on each: 1. the Whale Shark - Rhincodon typus - the largest fish in the world today, adults range from 8m to more than 15m in length. They can be found in all the tropical oceans of the world, and wander huge migratory paths. Some have been known to follow the warm GulfStream waters up to the shores of the British Isles from time to time. They spend most of their time out in the open seas, but do come in close to shore as well. Friends of mine recently swam with them on a diving eco-tour just off the Galapagos Islands. They are quite approachable, as tiny swimming humans rarely pose a threat to them...