Religious expression has a central role in societies around the world, but exactly what role it plays isn't always clear....

We create words to label people, places, actions, thoughts, and more so we can express ourselves meaningfully to others. Do...

American politics has grown so polarized in recent years that there's hardly any cooperation at all across the aisle, but...

Despite notable differences in appearance and governance, ancient human settlements function in much the same way as modern cities, according...

It was disastrous when Europeans first arrived in what would become Brazil -- 95 percent of its population, the majority...