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Chipmunk skulls collected near Chicago in 1906. (Field Museum via SWNS)
By Talker
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(Photo by Nate via Pexels)
By Talker
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Authors Stephanie Smith and Anderson Feijó are examining chipmunk specimens in the Field Museum's collections. (Field Museum via SWNS)
By Talker
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Chipmunk specimens in the Field Museum's collections. (Field Museum via SWNS)
By Talker
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Skull and skin from a vole, collected in 1898 in Chicago. (Field Museum via SWNS)
By Talker
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