Explain Why Dogs Are Not Big On Vocal Communication

Dogs are not big on vocal communication, but they do produce many types and of sounds, ranging from whimpering to growling and barking, and through this means achieve some communication with other dogs and humans. Dogs may be better at communicating with humans in this way than with other dogs.
For instinct let's say your dog was not feeling good, and you want to take your dog for a walk/run. But you notice that the dog is laying down and when you call her/he she does not obey your command and stays still in place. There for you notice something's not right so you just love on him/he and just wait. If your dog is happy than it will run up to you wag its tail and look for affection. If your dog sad there's a few ways to notice call he/she and