We've all heard that sharks must constantly swim or they'll die. That doesn't exactly make it seem like they have much time for sleeping; at least not in the traditional sense that we're used to. Researchers made an interesting discovery with the help of a robotic submersible while following a ...

This encounter could've easily ended badly. While a photographer was taking pictures beside a river, he realized he had a guest when a grizzly bear snuck up on him and decided to take a seat beside him for a few minutes. We can only imagine how terrified this guy was, seeing as how a grizzly could ...