The largest species of shark is the whale shark (Rhincodon typus). Whale sharks can grow up to 40 feet long, with some individuals reportedly measuring even larger. They are known for their gentle nature and are filter feeders, primarily consuming plankton, small fish, and other tiny marine organisms. Despite their massive size, whale sharks pose no threat to humans and are often referred to as "gentle giants." They inhabit warm ocean waters and are often found near coral reefs, making them a popular attraction for divers and marine enthusiasts worldwide.