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The eye experts think it's from a blue whale. It's more than 4 inches across and dwarfs the next biggest eyeball in their collection. Dubielzig says it's the most exciting eye they have ever received. Everybody likes the biggest, he says, and this is the biggest. The biggest in their collection, that is.
Size. The whale shark is the largest fish in the world and the largest fish known to have lived on this planet. Because of its size and cartilaginous skeleton, it does not fossilize well and in life it is very difficult to weigh accurately. The largest accurately measured whale shark was 61.7 feet (18.8 m).