Bees in a hive communicate with each other primarily through a combination of pheromones, touch, and dance. They release different scents or pheromones to convey messages about food sources, threats, or the location of a new hive. They also use physical movements like the famous waggle dance to indicate the direction and distance of food sources to other bees. Touch is another important form of communication among bees, such as when they pass information to each other through antennal contact.