Instinctive behaviours can be variable and responsive to the environment. Any behaviour is instinctive if it is performed without being based upon prior experience, that is, in the absence of learning. Sea turtles, newly hatched on a beach, will automatically move toward the ocean, and automatically swim when they are in the water. A joey climbs into its mother's pouch upon being born. Honeybees communicate by dance the direction of a food source without formal instruction. Other examples include animal fighting, animal courtship behaviour, internal escape functions, and building of nests.