Archaeologists are pushing the origins of art far deeper into prehistory than anyone expected, revealing painted symbols and ...

With beaches, forests, and mountains Costa Rica is the most biodiverse place on earth -- making this popular destination a ...

The best animal books out there, chosen by Andrea Cáceres, author and ilustrator of playful children's books about dogs.

Photojournalist Ami Vitale followed Przewalski’s horses—once declared extinct in the wild—on a 2,000-mile journey back to ...

Calakmul remained relatively undisturbed until gum harvesters in Mexico led an American botanist to them in 1931. Here’s what ...