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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.
Largest Eye in the World, Giant Squid Giant squid have the largest eye in the animal kingdom. At up to 10 inches in diameter, people often describe it as the size of a dinner plate -- or, in other words, as big as a human head. Here, National Museum of Natural History staffer Katie Velazco goes eye-to-eye with a preserved example from the Smithsonian\'s collection.