A Kentucky cave's ties to the Underground Railroad have helped save it from becoming a coal-ash dumping site -- at least so far.
Digging deep for a last burst of speed, I pass the lady towing her kid in a trailer.
People just lose their minds when they see a black woman on a bicycle. You should see the looks of shock.
Poachers are rapidly killing off Africa's most iconic megafauna to make keychains and impotence cures.
With its doll eyes and fuzzy mouthparts, the Australian peacock spider could endear itself to even the most skittish arachnophobe.
As climate change cranks up the thermostat to broil, especially in the world's poorest countries, economists have been studying how we can adapt.
Our antiquated system of regional grids is, for the most part, hardwired to route electricity from big power plants.