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Chipmunk Maine Eric J. Eklund 112662 NWF photo contest 2004

NOT Alvin and the Chipmunks: 10 Facts You May Not Know about the Real Rodents

12/13/2011 // By Roger Di Silvestro

Christmas time, and our thoughts turn to—chipmunks. Yes, it is odd that a hibernating rodent would become associated with Christmas, but that is the miracle of radio and a hit song for Alvin and the Chipmunks back in 1958 (when they […] Read more >

Photo from US Fish and Wildlife Service, Karner Blue Butterfly

A Special NWF Thank You to Donors at Thanksgiving

11/21/2011 // By Roger Di Silvestro

As an employee of the National Wildlife Federation, I recognize that my work depends largely on the kindness of strangers. Nonprofit organizations like NWF rely for survival on donations, and roughly 75 percent of the money donated to nonprofits yearly […] Read more >

Meltdown in the Mountains: How Global Warming Threatens Pikas and Other High-Country Critters

7/19/2011 // By Roger Di Silvestro

Alarm Bells for the Alpine Zone It’s high atop the world’s mountains, where it accounts for less than 5 percent of the Earth’s surface. It’s battered by winds, it’s frigidly cold most of the year, and it is treeless. Ecologists […] Read more >

Alaska brown bear, bristol bay, pebble mine

Imperiled Wilderness: Eight Things You Probably Don’t Know about Alaska’s Bristol Bay

7/11/2011 // By Roger Di Silvestro

The 40,000-square-mile Bristol Bay region of southwest Alaska stretches across pristine tundra and wetlands crisscrossed with rivers that flow into the bay. Up to 40 million sockeye salmon return to this watershed each year—the world’s largest salmon run. In addition […] Read more >

Elk in Washington state's Snoqualmie area in a photo by Robert P. Martin

Five Things You Should Know About Wildlife Corridors

6/16/2011 // By Roger Di Silvestro

Beginning in the early 1900s and continuing for much of the 20th century, conservationists focused on protecting core areas for wildlife—biologically diverse habitats designated as wildlife refuges, wilderness areas, parks and other units. But since the 1970s, scientists have learned […] Read more >

bison, yellowstone, fort belknap, fort peck, charles m russell national wildlife refuge, saving bison, bison conservation

Three Things to Learn from Bison Conservation

5/23/2011 // By Roger Di Silvestro

The bison, or American buffalo, roamed the plains and woodlands of North America tens of thousands of years ago. It was a contemporary of saber-toothed cats, woolly mammoths and woolly rhinos but was a better survivor: the bison is the largest […] Read more >

NWF, national wildlife federation, great american backyard campout

Great American Backyard Campout: Seven Things to Do After Dark

5/18/2011 // By Roger Di Silvestro

That day on which thousands of people across the nation pitch tents and roll out sleeping bags is almost here—National Wildlife Federation’s Great American Backyard Campout,  slated this year for June 25. Camping, even for just a night in a […] Read more >

karner blue butterfly, endangered butterfly

National Endangered Species Day: Lest We Forget

5/17/2011 // By Roger Di Silvestro

Probably the most astonishing wildlife spectacle that ever occurred in American history was the migration of the passenger pigeon, a bird that resembled a larger, more colorful mourning dove, with a bluish back and a rosy breast. Now largely forgotten, […] Read more >

redbud, virginia, garden for wildlife month

For Wildlife Garden Month: Thoreau’s Thoughts on Trees

5/11/2011 // By Roger Di Silvestro

Here at NWF we are celebrating Garden for Wildlife Month, because May is perfect for making home gardens into wildlife havens. Even if your garden is only a window box, you can find ways to turn it into a stopping […] Read more >

Yellowstone National Park gray wolf

For Dog Appreciation Month: The Origin of Domestic Dogs

4/19/2011 // By Roger Di Silvestro

April is Dog Appreciation Month, a good time for asking where in the wild these four-footed companions originally came from. For many years, scientists interested in canine evolution speculated that some dog breeds descended from wolves and some from jackals […] Read more >