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DO NOT BELIVE 'The Fox'!!! THE SOUNDS ARE: Whine Made shortly after birth. Occurs at a high rate when kits are hungry and when their body temperatures are low. Whining stimulates the mother to care for her young; it also has been known to stimulate the male fox into caring for his mate and kits. Yelp Made about 19 days later. The kits' whining turns into infantile barks, yelps, which occur heavily during play. Explosive call At the age of about one month, the kits can emit an explosive call which is intended to be threatening to intruders or other cubs; a high-pitched howl. Combative call In adults, the explosive call becomes an open-mouthed combative call during any conflict; a sharper bark. Growl An adult fox's indication to their kits to feed or head to the adult's location. Bark Adult foxes warn against intruders and in defense by barking.[2][24] In the case of domesticated foxes, the whining seems to remain in adult individuals as a sign of excitement and submission in the presence of their owners.[2] -Wiki