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Of mice and men

Rapid anatomical changes in rodents linked to increases in human population density, precipitation

6:11pm, August 3, 2009

No one ever said that rodents aren’t adaptable.

Subtle yet discernable changes in rodent skull shape and body length at sites worldwide may be linked to human population density and precipitation in those locales, new research has shown.

Previously, scientists have noted rapid anatomical changes, those occurring over just a few decades, only in populations of geographically isolated rodents, says Oliver Pergams, an evolutionary biologist at the University of

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