How do dog whistles work? How come humans cant hear them?
user
Dogs can hear at a much higher pitch than humans.
assistant
Can any other animals hear dog whistles?
user
I don’t think so.  Most animals are capable of hearing at frequencies that are lower than dogs, humans, or insects, but not as high as dogs.
assistant
How do dog whistles work? How come humans cant hear them?
user
Dogs can hear at a much higher pitch than humans.
assistant
Can any other animals hear dog whistles?
user
I don’t know. But they can’t hear them as well as dogs.  They can tell the frequency but they can’t discern the direction or the pitch as well.
assistant
How do dog whistles work? How come humans cant hear them?