New research comparing stone tools found at sites across the US and on Japan’s northernmost island suggests a different ...

The triceratops is particularly impressive, its massive form creating an imposing silhouette against the Alabama sky. Children (and let’s be honest, adults too) delight in discovering these creatures, ...

Forget the gentle image of dinosaurs grazing in peace, prehistoric America was a nightmare realm of violence and survival. Ancient lakes hid colossal predators, while massive land mammals clashed in ...

For years, scientists thought Antarctica was the main source of meltwater that flooded the planet's oceans after the last ice age. But new research has flipped that story, and it has major ...

EDITOR’S NOTE: One remarkable component of the Greater Yellowstone Ecosystem is its complete suite of wild North American ...

Tucked away in the northwest corner of Kansas is a place where time stands still, a thriving ode to small-town America.

Until now, researchers had only uncovered a few tantalizing hints that humans had reached the American continent by this time ...

Researchers reveal that a 66-million-year-old “dinosaur mummy” wasn’t preserved skin but a thin clay film that perfectly ...

New research in a North American “mummy zone” in eastern Wyoming reveals how giant duck-billed dinosaurs were preserved in ...

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed ...

Analysis of a massive wooden monument has uncovered new secrets of Cahokia, America’s greatest lost civilization.

Imagine a sloth. You probably picture a medium-sized, tree-dwelling creature hanging from a branch. Today's sloths—commonly ...