Cetorhinus Maximus, commonly known as the basking shark, is a huge filter-feeding shark species that can grow up to 40 feet in length. Synonyms for Cetorhinus Maximus include the sunfish shark, the bone shark, and the elephant shark. These names are derived from the shark's behavior, appearance, and size. They are often found near the surface of the water with their dorsal fins and tails out of the water, giving them a sunfish-like appearance. They have a tough bone structure and huge size that can be compared to an elephant. Whatever name it goes by, the Cetorhinus Maximus is an impressive and fascinating species to observe in the wild.