By employing a high-frequency pitch, an owner or trainer can ... not unlike using hand gestures or speech. The whistle allows a dog to associate the sound with an expected behavior, and that ...

This unique sliding whistle would produce high-pitched sounds at frequencies above the limit of human hearing. Galton tested his invention on the streets of London by blowing it near dogs and charting ...

This explains why a dog can hear the ultrasound produced ... where a glass may shatter if the singer makes a high-pitched sound near to the glass. Ultrasound imaging creates a picture of something ...

This explains why a dog can hear the ultrasound produced ... where a glass may shatter if the singer makes a high-pitched sound near to the glass. Ultrasound imaging creates a picture of something ...