Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

The only thing this heart-stopping video lacks is the fear-triggering Jaws theme music! Watch a huge great white shark harass ...

Real guppies respond to Robofish—a 3D-printed plastic model with a vaguely realistic paint job—as if it were a real schoolmate. Researchers used different-sized Robofish to show that guppy schools ...