North America’s geological core has persisted ... and indeed showed up in the cross sections of seismic velocities that Hua and his colleagues made. A diagram demonstrates the researchers ...

And yet Connecticut—along with much of the rest of eastern North America—holds important clues about Earth’s history. This region, which geologists call the eastern North American margin ...

“For me, the great joy in life today is traveling across the face of North America out in nature,” he says. “And these birds, they do that to the max.” By following the shorebirds on their ...

Fifty thousand years ago, North America was home to towering giants. Mammoths roamed the tundra, saber-toothed cats hunted in forests, and giant sloths lumbered across plains. But by the end of ...

Less than one week after announcing an official opening date, the Columbus Zoo and Aquarium has postponed the opening of its North America Trek. Director of communications Jen Fields said in an ...

Blue-winged warblers and yellow-bellied sapsuckers. Snowy owls and tropical kingbirds. Across North America, three-fourths of bird species are in decline, according to a sweeping study of avian ...