This Animal's Eye Makes Up Almost Half of Its Body

When it comes to giant peepers, little marine animals called hyperiid amphipods are heads above the rest. When Dwayne LaGrou asked Weird Animal Question of the Week what animals have the largest eyes for their body size, we were sure the answer would be guilty-looking dogs. The actual candidates proved to be some real eye-openers. Because animals are built so differently, figuring out which has the biggest eyes can be tricky, Sönke Johnsen, a biologist at Duke University, says via email. (Read more about eyes, nature's most exquisite creation, in National Geographic magazine.)

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