New evidence from ancient stone tools suggests the First Americans may have sailed from Asia over 20,000 years ago, ...

No predator today can catch the American pronghorn, yet it runs as if something still chases it. Scientists trace this ...

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 ...

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 ...

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

President Donald Trump and lawmakers on both sides of the political aisle are not faring well when it comes to the federal government shutdown, according to a new poll. The latest YouGov/The Economist ...