Americas

Tens of thousands of preserved cave paintings were found spread on a giant rock in a historical discovery in Colombia's Amazon rainforest. Named the “Sistine Chapel of the Ancients,” the monumental discovery has changed the world of…

The popular herbal extract St. John's wort is more effective at treating the symptoms of depression than any antidepressant drug, and has fewer side effects, researchers from the Centre for Complementary Medicine in Munich have concluded.…