From Wikipedia
A dog's world is literally different than ours. They track every dizzying circle of a buzzing fly until they catch it in their mouths. They can hear ultrasound without going to the doctor's office.
And take something as simple as a bowl of warm chicken soup. We smell it, but they really smell it: Dogs have the ability to separate out smells like the water, onion, carrots and chicken.
With such differences in how man and man's best friend perceive the world, how well can we possibly be communicating? Any dog lover will tell you that dogs respond to human behavior, often with loyalty and unconditional love. But do dogs really understand us?
The short answer is, yes, your dog understands you, says Bruce Blumberg, senior scientist at Blue Fang Games and former associate professor of MIT's Media Lab.
Blumberg has spent much of his career with dogs -- both real and imagined. He studies how dogs are trained and then creates virtual dogs that respond in the same way. In the process, he's learned a lot about how dogs perceive their world.
