Species at Risk
The five species of prairie dogs were once likely more than one billion strong, and their colonies covered roughly 100 million acres. Since the late 1800s, their numbers have been reduced by at least 95 percent.
Each spring, thousands of these shorebirds stop in the U.S. as they migrate from South America to the Canadian Arctic.
Clean energy can help fight climate change, but it has to be planned with wildlife in mind.
Historically, hundreds of thousands of wolves roamed wild throughout North America. But during the 19th and 20th centuries, wolves virtually disappeared from the American west.
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On the Blog
March 11, 2014 | 10.59 AM
March 11, 2014 | 9.58 AM
March 10, 2014 | 8.17 AM