Wolves communicate within a pack using a variety of vocalizations, body language, and scent marking. They howl to communicate over long distances, establish territory, or gather the pack together. They also use growls, barks, whines, and yips to convey different messages to each other. Additionally, body language such as tail position, ear stance, and facial expressions play a crucial role in their communication. Wolves also use scent marking through urine, feces, and gland secretions to leave messages for other pack members and mark their territory.