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Paleo study shows how elevation may affect evolution

About 34 million years ago, global temperatures took a dive, causing a sudden wave of extinctions among European mammals. In North America, however, life went on largely unscathed. A new study explains why: The rise of the ...

dateJun 03, 2015 in Evolution
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US removes gray wolf from endangered list

The US government said Wednesday it is formally removing about 1,300 gray wolves in the Rocky Mountain region from the endangered species list, capping a legal battle that has dragged on for years.

dateMay 04, 2011 in Ecology
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Mystery of monarch migration takes new turn

During the fall, hundreds of millions of monarch butterflies living in eastern North America fly up to 1,500 miles to the volcanic forests of Mexico to spend the winter, while monarchs west of the Rocky Mountains fly to the ...

dateMay 31, 2012 in Plants & Animals
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