In a kind of "fatal attraction," small predators drawn to kill sites for leftover scraps may get killed themselves when big predators return for seconds.

Humpback whales attack their prey about as fast as humans jog. So how are they so good at catching tiny, speedy fish? Stealth and deception.

The new 3D-imaging technology is so precise that it let scientists track catfish movements with errors equivalent to the width of a human hair.