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Science
85% Informative
Chipmunks and voles living in Chicago have undergone measurable evolutionary changes over the past 125 years , adapting to urban life by developing smaller teeth and altered hearing structures.
Field Museum researchers analyzed 132 chipmunk and 193 vole specimens from the museum’s collection.
Researchers found that urban chipmunks developed larger skulls but shorter rows of teeth, while voles evolved smaller auditory bullae.
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93
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24
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English
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long-living
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