A humpback whale briefly engulfed a kayaker off the coast of Chile in an incident caught on camera. Experts say it couldn't have swallowed him even if it wanted to.

Open YouTube and tap the plus button at the bottom. Tap the Dream Screen icon on the right (it looks like a human silhouette) ...

The economic theory, which traces to 1865, says that as a resource becomes more efficient to use, demand will increase. It ...