Thousands of red ochre paintings—spanning animals, handprints, and unknown symbols—were found stretched across cliffs deep in the Colombian Amazon, revealing life at the end of the last ice age.

Explore the remote rainforest of southwest Guyana, captured in ultra-high-definition aerial footage. This region, part of the ancient Guiana Shield, is one of South America's most ecologically rich ...

Stan Lee is the godfather of Marvel Comics, but he once wrote the theme song to an '80s cartoon about superheroes that ...