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Largest fish in the world: Whale shark
The whale shark is the biggest fish on Earth. A female whale shark can grow to an average length of 14 metres, with the longest said to reach a staggering 21.4m. They can weigh as much as 18,144kg. Just as with many whales, the whale shark is a filter feeder and eats plankton, krill, and small fish. A whale shark’s mouth can be as wide as 1.55m.
