ELI5: how do dogs hear more than s

Dogs hear much more than humans because their ears are built like super-sensitive satellite dishes that can catch higher-pitched sounds from much further away.

Here is how a dog's super-hearing works in everyday life:

• They hear hidden high notes: Sounds travel through the air in waves, kind of like ripples in a pond. Humans can only hear big, slow ripples, but dogs can hear tiny, super-fast ripples. This means a dog can easily hear a squeaky dog whistle, the high-pitched buzz of your television screen, or the tiny rustle of a mouse in the grass that is completely silent to you.
• They have moving ears: Human ears are stuck flat to the sides of our heads, but dogs have dozens of tiny muscles in their ears. They can tilt, swivel, and rotate their ears independently, just like little radar dishes, to point directly at a noise and figure out exactly where it is coming from.
• They hear from super far away: Because their ears are so good at catching sound waves, dogs can hear things about four times further away than we can. When you are sitting in the living room, you might only hear the TV, but your dog can hear the mail carrier closing a car door all the way down the street.