Dogs don't need diamonds—they light up over the simplest things. But science says some activities trigger tail wags stronger than others, and this list digs into those feel-good goldmines.

Many people have probably seen something unexplained in their lifetime that made them do a double take. 18% of Americans, for example, claim they have seen a ghost. When it comes to paranormal ...

Art typically seems like a human activity, tied to culture, symbols, and personal expression. Yet a small group of animals has created paintings and designs that sold for surprising sums. Their work ...