I present for your viewing pleasure a stunning GoPro award video. Ocean Ramsey is a shark conservationist and free diver (diving without oxygen for long periods of time). She is featured in this incredible video, swimming with a whale shark, the largest fish in the world. Amazing!
Whale shark: The whale shark (Rhincodon typus) is a slow-moving filter feeding shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.5 ft) and a weight of about 21.5 t (47,000 lb).
The whale shark is found in open waters of the tropical oceans and is rarely found in water below 22 °C (72 °F). Modeling suggests a lifespan of about 70 years, but measurements have proven difficult. They have very large mouths and are filter feeders, which is a feeding mode that occurs in only two other sharks, the megamouth shark and the basking shark. They feed almost exclusively on plankton and, therefore, are completely harmless to humans.