Right in the center of the island nation of Madagascar there’s a strange, almost perfectly circular geological structure. It covers a bigger area than the city of Paris — and at first glance, it looks completely empty. But right in the center of that stru...

The ancient world was actually really colorful.

Centuries before we had American Sign Language, Native sign languages, broadly known as “Hand Talk,” were thriving across North America. Hand Talk would be influential in the formation of American Sign Language. But it has largely been written out of hist...