Two rare black wolves, likely siblings, were spotted on camera crossing a stream in a Polish forest, a conservation organization said Sunday. The unusual sighting, captured ...

America’s First National Park Yellowstone National Park holds the title of being America's first national park, and it was ...

Two decades ago, Raymond Lombra, a now-retired economist at Penn State University, warned of a "rounding tax" that could amount to at least $600 million a year if merchants were to routinely add a ...