Animals in the wild communicate with each other through various methods such as vocalizations, body language, and chemical signals. They use calls, roars, chirps, and other sounds to convey messages like warning of danger, attracting a mate, or establishing territory. Additionally, body language such as gestures, postures, and facial expressions play a crucial role in animal communication. Some animals also use pheromones or scent signals to communicate information about their identity, reproductive status, or marking territory.