Forest 'islands' offer refuge to wintering birds

The polar vortex of 2013 and 2014 brought the coldest winter many parts of the Midwest had experienced in decades. In Dane County, Wisconsin, it was the coldest it had been in 35 years.

Good news and bad news about forest fragmentation

Over the past centuries, as we humans have cleared fields for farms, built roads and highways, and expanded cities ever outward, we've been cutting down trees. Since 1850, we've reduced global forest cover by one-third. We've ...

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