What Is the Biggest Fish in the World?

The whale is a mammal, not a fish, so we cannot count it as the world's largest fish.

That honor goes to the whale shark, a fish that often grows to a length of 45 to 50 feet, and weighs over 30,000 pound's. The biggest whale shark ever caught was 59 feet long and weighed 90,000 pounds!

The whale shark is one shark you don't have to worry about when you're in the water, for this massive creature eats only small plants, and is completely harmless to man.

The largest man-eating shark, the great white shark, is much smaller, up to 20 to 25 feet in length and weighing about 7,000 pounds.

A 100-pound sea lion was once found in the stomach of a 30-foot shark!