What is the largest fish in the world?

The largest fish in the world is the whale shark (Rhincodon typus), which can grow up to 18 metres (59 feet) in length. Despite their enormous size, whale sharks are gentle filter feeders, consuming plankton, small fish, and other microscopic organisms. They can be found in tropical and warm-temperate seas around the world. Whale sharks are known for their distinctive spotted patterns, which help researchers identify individual sharks. These sharks are not dangerous to humans and are often considered a conservation priority due to their declining populations.