What does it behave by barking when it?

This question is asking what happens when something behaves by barking, and it’s like asking what happens when a dog does its thing.

"Behave by barking" means that the thing we're talking about shows how it feels or what it wants by barking. Just like your dog at home, who might bark to tell you someone is at the door, or to say they want a treat.

Imagine you have a dog friend. When the dog is happy, it wags its tail. But when it’s excited or wants something, it barks. That barking is how it communicates, it's like speaking in sounds!

So if we say something "behaves by barking," that means it uses barking as a way to show what it feels or needs.

Think of a robot dog. If it barks when it’s happy or wants attention, then the robot is behaving just like a real dog, but with barks instead of words!