There was a good chance the other dogs had heard the commotion and were coming for him.

The first thing that happened was when the dog heard the intruder.

When the young dog heard a car, they moved to the side, onto the grass.

If they went on after that, it was in voices only dogs could hear.

I knew that the dogs would have heard the lift arrive.

My voice was so high that only dogs could hear it.

This must be what dogs hear in human speech, he thought.

"When they play really fast, only dogs can hear them."

What music does a dog hear in her head all day?

I shrieked in a voice so high, only dogs could hear me.