The largest fish in the ocean is the whale shark (Rhincodon typus). This gentle giant can grow up to 40 feet (12 meters) long or more and weighs several tons. Despite its massive size, the whale shark is a filter feeder that primarily consumes plankton and small fish. Found in warm tropical waters, these sharks are often spotted near the surface, which makes them accessible for divers and snorkelers. Whale sharks are known for their distinctive patterns of spots and stripes, making each individual unique. Their conservation status is vulnerable due to threats from fishing and habitat degradation.