How do dogs communicate with each other?

Question: How do dogs communicate with each other?

Dogs communicate with each other in various ways including body language, barking, and facial expressions. Dogs also use their sense of smell to recognize one another and identify scents from other people and animals. From body language, dogs can convey messages such as surrender, submission, or aggression. Barking can be used to signal danger, alert, or display dominance. Facial expressions can show feelings of happiness, fear, aggression, or playfulness.