Got your attention? Thought so. But what is it about a piercing shriek that really turns our heads? It's what it does to our brains. The acoustical properties of the human scream poke at the neural circuits that control fear. That's according to a study in the journal Current Biology.
Our every waking moment is filled with noise, from planes flying overhead to various creatures scrambling underfoot. But a heartfelt cry can cut through all that. So what's so special about the sound of a screech?