Climate change makes more shrew species, 70 genetic varieties
Tuesday, October 23, 2012 - 09:31
in Paleontology & Archaeology
Anyone who went outside this summer felt the effects of climate change. Now the Eurasian shrew, Sorex araneus, can say the same. A new study by P. David Polly of Indiana University found that climate change caused shrews to change, genetically, and eventually become different species. Using shrew DNA and fossils, he found that this change occurred over hundreds of thousands of years during repeated times of extreme cold, or glaciations.