Animal vocalization refers to the sounds made by animals to communicate with one another. These sounds can include calls, songs, and other vocal signals that convey information about territory, mating, or warnings of danger. Different species have unique vocalizations, which can vary in pitch, tone, and duration. Many animals, such as birds, wolves, and whales, use vocalizations as a primary means of communication. For example, birds often sing to attract mates or establish territory, while wolves howl to coordinate with their pack. Understanding these vocalizations helps researchers learn more about animal behavior and social structures.