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72 DPI Image
300 DPI Image



Date Posted: March 29, 2007

Caption: Dogs like the Irish Wolfhound (right) and the Chihuahua dramatically illustrate the size difference among breeds. Dogs exhibit the greatest diversity in body size of any mammalian species.
Credit: Tyrone Spady , NHGRI
Date Created: March 25, 2007

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Category (1): Science Photos: Animals