Alarm calls are vocal signals used by animals to warn others of potential danger. These calls can vary in pitch, duration, and intensity, depending on the type of threat and the species making the call. For example, birds may use specific alarm calls to alert their flock about nearby predators like hawks or cats. Different species have developed unique alarm call systems that can convey specific information. Some animals, such as meerkats, even have distinct calls for different types of threats, allowing their group to respond appropriately. This communication helps enhance survival by enabling quick reactions to dangers in their environment.