Iberian Peninsula rodents migrated due to climate change 12 million years ago

Changes in Southwestern Europe’s climate which happened between 12 and 5 million years ago had a drastic impact over the rodent communities. These profound changes in environmental conditions led to a separation between species adapted to arid environments which migrated to interior regions of the Iberian Peninsula and species adapted to humid environments thriving where Catalonia and France are today, according to a new study.
Paleontology News — ScienceDaily

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